(command.CommandList
  children: [
    (command.ShAssignment
      left: <Id.Lit_VarLike 'dir='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'dir='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'dir='> name:dir)
          op: assign_op.Equal
          rhs: {($ Id.VSub_DollarName _)}
        )
      ]
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'command='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'command='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'command='> name:command)
          op: assign_op.Equal
          rhs: {<3d>}
        )
      ]
      redirects: []
    )
    (command.Case
      case_kw: <Id.KW_Case case>
      to_match: (case_arg.Word w:{($ Id.VSub_DollarName RANDOM)})
      arms_start: <Id.KW_In in>
      arms: [
        (CaseArm
          left: <Id.VSub_DollarName '$RANDOM'>
          pattern: (pat.Words words:[{($ Id.VSub_DollarName RANDOM)}])
          middle: <Id.Right_CasePat _>
          action: [
            (command.Simple
              blame_tok: <exec>
              more_env: []
              words: [{<exec>} {<ksh>} {<3d>} {(DQ ($ Id.VSub_At '@'))}]
              redirects: []
              do_fork: T
            )
          ]
          right: <Id.Op_DSemi _>
        )
      ]
      arms_end: <Id.KW_Esac esac>
      redirects: []
    )
    (command.Case
      case_kw: <Id.KW_Case case>
      to_match: 
        (case_arg.Word
          w: 
            {
              (CommandSub
                left_token: <Id.Left_DollarParen '$('>
                child: 
                  (command.CommandList
                    children: [
                      (command.Sentence
                        child: 
                          (command.Simple
                            blame_tok: <getopts>
                            more_env: []
                            words: [{<getopts>} {(SQ <'[-][123:xyz]'>)} {<opt>} {<--xyz>}]
                            redirects: [
                              (Redir
                                op: <Id.Redir_Great '2>'>
                                loc: (redir_loc.Fd fd:2)
                                arg: {<'/dev/null'>}
                              )
                            ]
                            do_fork: T
                          )
                        terminator: <Id.Op_Semi _>
                      )
                      (command.Simple
                        blame_tok: <echo>
                        more_env: []
                        words: [{<echo>} {<0> ($ Id.VSub_DollarName opt)}]
                        redirects: []
                        do_fork: T
                      )
                    ]
                  )
                right: <Id.Eof_RParen _>
              )
            }
        )
      arms_start: <Id.KW_In in>
      arms: [
        (CaseArm
          left: <0123>
          pattern: (pat.Words words:[{<0123>}])
          middle: <Id.Right_CasePat _>
          action: [
            (command.ShAssignment
              left: <Id.Lit_VarLike 'ARGV0='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'ARGV0='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'ARGV0='> name:ARGV0)
                  op: assign_op.Equal
                  rhs: {(DQ <'-a '> ($ Id.VSub_DollarName command))}
                )
              ]
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike 'USAGE='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'USAGE='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'USAGE='> name:USAGE)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (SingleQuoted
                        left: <Id.Left_DollarSingleQuote '$\''>
                        tokens: [
                          <Id.Char_Literals '\n'>
                          <Id.Char_Literals '[-?\n'>
                          <Id.Char_Literals '@(#)$Id: 3d (AT&T Labs Research) 2006-10-01 $\n'>
                          <Id.Char_Literals ']\n'>
                        ]
                        right: <Id.Right_SingleQuote '\''>
                      ) ($ Id.VSub_DollarName USAGE_LICENSE) 
                      (SingleQuoted
                        left: <Id.Left_DollarSingleQuote '$\''>
                        tokens: [
                          <Id.Char_Literals '\n'>
                          <Id.Char_Literals 
'[+NAME?3d - execute a command with nDFS filesystem services enabled]\n'
                          >
                          <Id.Char_Literals '[+DESCRIPTION?'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 3d>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' executes a dynamically linked '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals command>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '\n'>
                          <Id.Char_Literals '\twith '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals n>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals DFS>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' filesystem services enabled. It intercepts pathname\n'>
                          <Id.Char_Literals '\tsystem calls and applies the '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals n>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals DFS>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' operations specified\n'>
                          <Id.Char_Literals '\tby the '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals VPATH>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' environment variable, the command line mounts,\n'>
                          <Id.Char_Literals '\tand the '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals vpath>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' command. If '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals command>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' is omitted then an\n'>
                          <Id.Char_Literals '\tinteractive '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals sh>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '(1) is started. All processes executed by '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals command>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '\n'>
                          <Id.Char_Literals '\talso have '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals n>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals DFS>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' enabled.]\n'>
                          <Id.Char_Literals '[+?The main '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 3d>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' service is '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals viewpathing>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '. A '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals viewpath>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' mounts one\n'>
                          <Id.Char_Literals 
'\tdirectory tree on top of another. Files in the top level\n'
                          >
                          <Id.Char_Literals 
'\t(directory tree) obscure files in the lower level. Lower level files\n'
                          >
                          <Id.Char_Literals 
'\thave copy-on-write semantics to the top level. i.e., files in the lower\n'
                          >
                          <Id.Char_Literals 
'\tlevel are readonly; if a lower level file is modified it is first\n'
                          >
                          <Id.Char_Literals 
'\tcopied to the top level before modification. Viewpath mounted\n'
                          >
                          <Id.Char_Literals 
'\tdirectories can be chained. All levels but the top in a chain are\n'
                          >
                          <Id.Char_Literals '\treadonly. The traditional '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 'VPATH='>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals 'd1:d2:d3'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' viewpathing is\n'>
                          <Id.Char_Literals '\tspecified by the two '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 3d>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' mounts "'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals 'd1 d2'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '" and "'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals 'd2 d3'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '".]\n'>
                          <Id.Char_Literals 
'[+?The following service mounts are initialized by default:]{\n'
                          >
                          <Id.Char_Literals '\t[+/dev/fd?'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '/dev/fd/'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals n>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' refers to the open file descriptor '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals n>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '\n'>
                          <Id.Char_Literals '\t\tin the current process.]\n'>
                          <Id.Char_Literals '\t[+/dev/fdp?'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '/dev/fdp/local/'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals service>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' opens a 2-way stream to\n'>
                          <Id.Char_Literals '\t\t'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals service>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' on the local host. The stream supports file\n'>
                          <Id.Char_Literals '\t\tdescriptor exchange.]\n'>
                          <Id.Char_Literals '\t[+/dev/tcp?'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '/dev/tcp/'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals host>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '/'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals service>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' opens a 2-way\n'>
                          <Id.Char_Literals '\t\tconnection to '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals service>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' on '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals host>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '. '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals inetd>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '(8) services\n'>
                          <Id.Char_Literals '\t\tare named either by '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals inet.>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals service>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' or by port number.]\n'>
                          <Id.Char_Literals '\t[+/dev/udp?'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '/dev/udb/'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals host>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '/'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals service>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' opens a datagram\n'>
                          <Id.Char_Literals '\t\tconnection to '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals service>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' on '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals host>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '. '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals inetd>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '(8) services\n'>
                          <Id.Char_Literals '\t\tare named either by '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals inet.>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals service>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' or by port number.]\n'>
                          <Id.Char_Literals '}\n'>
                          <Id.Char_Literals '[c:command?Ignored; allows '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 3d>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' to be invoked like '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals sh>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '(1).]\n'>
                          <Id.Char_Literals '[d:debug?Set the debug trace level to '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals level>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '. Higher levels produce more\n'>
                          <Id.Char_Literals '\toutput.]#[level]\n'>
                          <Id.Char_Literals '[l:lite?Disable the default service mounts.]\n'>
                          <Id.Char_Literals '[m:mount?Mount the path '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals top>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' onto the path '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals bottom>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '. If '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals bottom>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' is a\n'>
                          <Id.Char_Literals '\tdirectory then the directory '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals top>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' is viewpathed on top of '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals bottom>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '.\n'>
                          <Id.Char_Literals '\tOtherwise '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals bottom>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' must match a '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 3d>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals fs>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' path of the form\n'>
                          <Id.Char_Literals '\t'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '/#'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals special>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '.]:["top bottom"]\n'>
                          <Id.Char_Literals '[n!:exec?Execute '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals command>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '. '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals --noexec>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' shows how '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals command>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' would be\n'>
                          <Id.Char_Literals '\tinvoked but does not execute.]\n'>
                          <Id.Char_Literals '[o:output?'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals --trace>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' and '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals --debug>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' output is written to '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals file>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' instead\n'>
                          <Id.Char_Literals '\tof the standard error.]:[file]\n'>
                          <Id.Char_Literals '[s:shell?Sets the '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals sh>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '(1) executable path to '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals file>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '.]:[file:=ksh]\n'>
                          <Id.Char_Literals '[t:trace?If '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals id>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' is '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 1>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' then intercepted system calls for all child\n'>
                          <Id.Char_Literals '\tprocesses will be traced. If '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals id>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' is greater than '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 1>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' then\n'>
                          <Id.Char_Literals 
'\tintercepted system calls for the current process and all\n'
                          >
                          <Id.Char_Literals '\tchildren will be traced.]#[id]\n'>
                          <Id.Char_Literals '[v:version?Use '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 3d>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' version '>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals major.minor>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ' instead of the latest\n'>
                          <Id.Char_Literals '\tversion.]:[major.minor]\n'>
                          <Id.Char_Literals '[x:?Passed to the '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 3d>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals sh>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '(1).]\n'>
                          <Id.Char_Literals '[+FS PATHS?'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 3d>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals fs>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' paths of the form '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '/#'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals special>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '['>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '/'>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '...]]\n'>
                          <Id.Char_Literals '\tcontrol the semantics of '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals 3d>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' and allow services to be attached to\n'>
                          <Id.Char_Literals '\tthe file namespace. Unsupported '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals fs>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' paths are silently ignored. The\n'>
                          <Id.Char_Literals '\tsupported '>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals fs>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals ' paths are:]{\n'>
                          <Id.Char_Literals '\t[+/#fd? ]\n'>
                          <Id.Char_Literals '\t[+/#fs/'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals name>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '[/'>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals option>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '/...]]? ]\n'>
                          <Id.Char_Literals '\t[+/#map? ]\n'>
                          <Id.Char_Literals '\t[+/#null? ]\n'>
                          <Id.Char_Literals '\t[+/#option? ]{\n'>
                          <Id.Char_Literals '\t\t[+2d? ]\n'>
                          <Id.Char_Literals '\t\t[+3d? ]\n'>
                          <Id.Char_Literals '\t\t[+boundary? ]\n'>
                          <Id.Char_Literals '\t\t[+call='>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals value>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '? ]\n'>
                          <Id.Char_Literals '\t\t[+count='>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals value>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '? ]\n'>
                          <Id.Char_Literals '\t\t[+debug='>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals level>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '? ]\n'>
                          <Id.Char_Literals '\t\t[+dump='>
                          <Id.Char_OneChar '\\b'>
                          <Id.Char_Literals '['>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals value>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals ']]? ]{\n'>
                          <Id.Char_Literals '\t\t\t[+call='>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals value>
                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '? ]\n'>
                          <Id.Char_Literals '\t\t\t[+file='>
                          <Id.Char_OneChar '\\a'>
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                          <Id.Char_Literals '\t\t\t[+map='>
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                          <Id.Char_OneChar '\\a'>
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                          <Id.Char_OneChar '\\a'>
                          <Id.Char_Literals '? ]\n'>
                          <Id.Char_Literals '\t\t[+fork? ]\n'>
                          <Id.Char_Literals '\t\t[+init? ]\n'>
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                          <Id.Char_Literals '\t\t[+table='>
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                          <Id.Char_Literals bitmask>
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                          <Id.Char_Literals '\t\t[+version=1? ]\n'>
                          <Id.Char_Literals '\t}\n'>
                          <Id.Char_Literals '\t[+/#pwd? ]\n'>
                          <Id.Char_Literals '\t[+/#safe? ]\n'>
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                          <Id.Char_Literals 
' semantics are applied by intercepting system calls with\n'
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'\tThe interception mechanism may involve the environment on some systems;\n'
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' ignores calls not present in a particular host system. In addition,\n'
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' only works on dynamically linked executables that have neither\n'
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'\tenvironment between the related processes is not kept in sync.]\n'
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'\tdepending on local compilation system conventions; and the '
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' that support multiple a.out formats may have multiple\n'
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                                    do_fork: T
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                                child: 
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                                    do_fork: T
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                      redirects: []
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                  right: <Id.Op_DSemi _>
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                {<Id.Lit_Star '*'> <'/arch/sgi.mips'> <Id.Lit_LBracket '['> <0123456789> 
                  <Id.Lit_RBracket ']'> <Id.Lit_Star '*'>
                }
              ]
            )
          middle: <Id.Right_CasePat _>
          action: [
            (command.If
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              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Simple
                          blame_tok: <test>
                          more_env: []
                          words: [{<test>} {<-d>} {<'/lib32'>} {<-o>} {<-d>} {<'/lib64'>}]
                          redirects: []
                          do_fork: T
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.ShAssignment
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                      pairs: [
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                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'd='> name:d)
                          op: assign_op.Equal
                          rhs: 
                            {
                              (BracedVarSub
                                left: <Id.Left_DollarBrace '${'>
                                token: <Id.VSub_Name dir>
                                var_name: dir
                                suffix_op: 
                                  (suffix_op.Unary
                                    op: <Id.VOp1_Percent '%'>
                                    arg_word: {<-> <Id.Lit_Other '*'>}
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                                right: <Id.Right_DollarBrace '}'>
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                            }
                        )
                      ]
                      redirects: []
                    )
                    (command.ShAssignment
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                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'd='>
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'd='> name:d)
                          op: assign_op.Equal
                          rhs: 
                            {
                              (BracedVarSub
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                                var_name: d
                                suffix_op: 
                                  (suffix_op.Unary
                                    op: <Id.VOp1_Percent '%'>
                                    arg_word: {<Id.Lit_Other '?'>}
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                                right: <Id.Right_DollarBrace '}'>
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                            }
                        )
                      ]
                      redirects: []
                    )
                    (command.ForEach
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                      iter_names: [a]
                      iterable: 
                        (for_iter.Words
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                            {<3> <Id.Lit_Colon ':'> <N32>}
                            {<4> <Id.Lit_Colon ':'> <64>}
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                        )
                      body: 
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                          children: [
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                              pairs: [
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                                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 't='> name:t)
                                  op: assign_op.Equal
                                  rhs: 
                                    {
                                      (BracedVarSub
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                                        token: <Id.VSub_Name a>
                                        var_name: a
                                        suffix_op: 
                                          (suffix_op.Unary
                                            op: <Id.VOp1_Pound '#'>
                                            arg_word: {<Id.Lit_Other '*'> <':'>}
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                                        right: <Id.Right_DollarBrace '}'>
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                                    }
                                )
                              ]
                              redirects: []
                            )
                            (command.ShAssignment
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                              pairs: [
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                                  left: <Id.Lit_VarLike 'a='>
                                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'a='> name:a)
                                  op: assign_op.Equal
                                  rhs: 
                                    {
                                      (BracedVarSub
                                        left: <Id.Left_DollarBrace '${'>
                                        token: <Id.VSub_Name a>
                                        var_name: a
                                        suffix_op: 
                                          (suffix_op.Unary
                                            op: <Id.VOp1_Percent '%'>
                                            arg_word: {<':'> <Id.Lit_Other '*'>}
                                          )
                                        right: <Id.Right_DollarBrace '}'>
                                      )
                                    }
                                )
                              ]
                              redirects: []
                            )
                            (command.If
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                              arms: [
                                (IfArm
                                  keyword: <Id.KW_If if>
                                  cond: 
                                    (condition.Shell
                                      commands: [
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                                          blame_tok: <test>
                                          more_env: []
                                          words: [
                                            {<test>}
                                            {<-d>}
                                            {($ Id.VSub_DollarName d) ($ Id.VSub_DollarName a)}
                                          ]
                                          redirects: []
                                          do_fork: T
                                        )
                                      ]
                                    )
                                  then_kw: <Id.KW_Then then>
                                  action: [
                                    (command.ShAssignment
                                      left: <Id.Lit_VarLike 'abi='>
                                      pairs: [
                                        (AssignPair
                                          left: <Id.Lit_VarLike 'abi='>
                                          lhs: 
                                            (sh_lhs_expr.Name
                                              left: <Id.Lit_VarLike 'abi='>
                                              name: abi
                                            )
                                          op: assign_op.Equal
                                          rhs: 
                                            {
                                              (DQ ($ Id.VSub_DollarName abi) <' '> 
                                                ($ Id.VSub_DollarName d) ($ Id.VSub_DollarName a) <':'> ($ Id.VSub_DollarName t)
                                              )
                                            }
                                        )
                                      ]
                                      redirects: []
                                    )
                                  ]
                                  spids: [1068 1078]
                                )
                              ]
                              else_action: []
                              fi_kw: <Id.KW_Fi fi>
                              redirects: []
                            )
                          ]
                          right: <Id.KW_Done done>
                        )
                      redirects: []
                    )
                  ]
                  spids: [996 1011]
                )
              ]
              else_action: []
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
          ]
          right: <Id.Op_DSemi _>
        )
      ]
      arms_end: <Id.KW_Esac esac>
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'cflag='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'cflag='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'cflag='> name:cflag)
          op: assign_op.Equal
          rhs: (rhs_word__Empty)
        )
      ]
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'full='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'full='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'full='> name:full)
          op: assign_op.Equal
          rhs: 
            {
              (DQ 
                <
'/dev/fdp/local/nam/user /#fs/nam/name/unique /dev/fdp /#nam /dev/tcp /#nam /dev/udp /#nam /dev/fd /#fd'
                >
              )
            }
        )
      ]
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'mount='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'mount='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'mount='> name:mount)
          op: assign_op.Equal
          rhs: {(DQ <'- -'>)}
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      redirects: []
    )
    (command.ShAssignment
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      pairs: [
        (AssignPair
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          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'options='> name:options)
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          rhs: (rhs_word__Empty)
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      redirects: []
    )
    (command.ShAssignment
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      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'output='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'output='> name:output)
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          rhs: (rhs_word__Empty)
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      ]
      redirects: []
    )
    (command.ShAssignment
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      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'show='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'show='> name:show)
          op: assign_op.Equal
          rhs: (rhs_word__Empty)
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      ]
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'shell='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'shell='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'shell='> name:shell)
          op: assign_op.Equal
          rhs: {($ Id.VSub_DollarName SHELL)}
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      ]
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'trace='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'trace='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'trace='> name:trace)
          op: assign_op.Equal
          rhs: (rhs_word__Empty)
        )
      ]
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'SHELL='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'SHELL='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'SHELL='> name:SHELL)
          op: assign_op.Equal
          rhs: (rhs_word__Empty)
        )
      ]
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'version='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'version='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'version='> name:version)
          op: assign_op.Equal
          rhs: (rhs_word__Empty)
        )
      ]
      redirects: []
    )
    (command.Case
      case_kw: <Id.KW_Case case>
      to_match: (case_arg.Word w:{($ Id.VSub_DollarName VPATH)})
      arms_start: <Id.KW_In in>
      arms: [
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          left: <Id.Lit_Star '*'>
          pattern: (pat.Words words:[{<Id.Lit_Star '*'> <Id.Lit_Colon ':'> <Id.Lit_Star '*'>}])
          middle: <Id.Right_CasePat _>
          action: [
            (command.ShAssignment
              left: <Id.Lit_VarLike 'ifs='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'ifs='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'ifs='> name:ifs)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (BracedVarSub
                        left: <Id.Left_DollarBrace '${'>
                        token: <Id.VSub_Name IFS>
                        var_name: IFS
                        suffix_op: 
                          (suffix_op.Unary
                            op: <Id.VTest_Hyphen _>
                            arg_word: {(SQ <'\n'> <'\t '>)}
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                        right: <Id.Right_DollarBrace '}'>
                      )
                    }
                )
              ]
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike 'IFS='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'IFS='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'IFS='> name:IFS)
                  op: assign_op.Equal
                  rhs: {<Id.Lit_Colon ':'>}
                )
              ]
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike 'o='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'o='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'o='> name:o)
                  op: assign_op.Equal
                  rhs: (rhs_word__Empty)
                )
              ]
              redirects: []
            )
            (command.ForEach
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              iter_names: [a]
              iterable: (for_iter.Words words:[{($ Id.VSub_DollarName VPATH)}])
              body: 
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                  children: [
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                      to_match: (case_arg.Word w:{($ Id.VSub_DollarName a)})
                      arms_start: <Id.KW_In in>
                      arms: [
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                          pattern: (pat.Words words:[{(DQ )} {<->}])
                          middle: <Id.Right_CasePat _>
                          action: []
                          right: <Id.Op_DSemi _>
                        )
                        (CaseArm
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                          pattern: (pat.Words words:[{<Id.Lit_Star '*'>}])
                          middle: <Id.Right_CasePat _>
                          action: [
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                              to_match: (case_arg.Word w:{($ Id.VSub_DollarName o)})
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                                  middle: <Id.Right_CasePat _>
                                  action: []
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                                (CaseArm
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                                  middle: <Id.Right_CasePat _>
                                  action: [
                                    (command.ShAssignment
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                                      pairs: [
                                        (AssignPair
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                                          lhs: 
                                            (sh_lhs_expr.Name
                                              left: <Id.Lit_VarLike 'mount='>
                                              name: mount
                                            )
                                          op: assign_op.Equal
                                          rhs: 
                                            {
                                              (DQ ($ Id.VSub_DollarName mount) <' '> 
                                                ($ Id.VSub_DollarName o) <' '> ($ Id.VSub_DollarName a)
                                              )
                                            }
                                        )
                                      ]
                                      redirects: []
                                    )
                                  ]
                                  right: <Id.Op_DSemi _>
                                )
                              ]
                              arms_end: <Id.KW_Esac esac>
                              redirects: []
                            )
                          ]
                          right: <Id.Op_DSemi _>
                        )
                      ]
                      arms_end: <Id.KW_Esac esac>
                      redirects: []
                    )
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'o='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'o='>
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'o='> name:o)
                          op: assign_op.Equal
                          rhs: {($ Id.VSub_DollarName a)}
                        )
                      ]
                      redirects: []
                    )
                  ]
                  right: <Id.KW_Done done>
                )
              redirects: []
            )
            (command.ShAssignment
              left: <Id.Lit_VarLike 'IFS='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'IFS='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'IFS='> name:IFS)
                  op: assign_op.Equal
                  rhs: {($ Id.VSub_DollarName ifs)}
                )
              ]
              redirects: []
            )
          ]
          right: <Id.Op_DSemi _>
        )
      ]
      arms_end: <Id.KW_Esac esac>
      redirects: []
    )
    (command.Simple
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      more_env: []
      words: [{<Id.Lit_Colon ':'>} {<grab>} {<the>} {<options>}]
      redirects: []
      do_fork: T
    )
    (command.WhileUntil
      keyword: <Id.KW_While while>
      cond: 
        (condition.Shell
          commands: [
            (command.Simple
              blame_tok: <getopts>
              more_env: []
              words: [
                {<getopts>}
                {($ Id.VSub_DollarName ARGV0)}
                {(DQ ($ Id.VSub_DollarName USAGE))}
                {<OPT>}
              ]
              redirects: []
              do_fork: T
            )
          ]
        )
      body: 
        (command.DoGroup
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          children: [
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              to_match: (case_arg.Word w:{($ Id.VSub_DollarName OPT)})
              arms_start: <Id.KW_In in>
              arms: [
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                  pattern: (pat.Words words:[{<c>}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.Sentence
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                        (command.ShAssignment
                          left: <Id.Lit_VarLike 'cflag='>
                          pairs: [
                            (AssignPair
                              left: <Id.Lit_VarLike 'cflag='>
                              lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'cflag='> name:cflag)
                              op: assign_op.Equal
                              rhs: {<1>}
                            )
                          ]
                          redirects: []
                        )
                      terminator: <Id.Op_Semi _>
                    )
                    (command.ControlFlow keyword:<Id.ControlFlow_Break break>)
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                  right: <Id.Op_DSemi _>
                )
                (CaseArm
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                  pattern: (pat.Words words:[{<d>}])
                  middle: <Id.Right_CasePat _>
                  action: [
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                      pairs: [
                        (AssignPair
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                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'trace='> name:trace)
                          op: assign_op.Equal
                          rhs: 
                            {
                              (DQ ($ Id.VSub_DollarName trace) <'/debug='> 
                                ($ Id.VSub_DollarName OPTARG)
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                            }
                        )
                      ]
                      redirects: []
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
                (CaseArm
                  left: <l>
                  pattern: (pat.Words words:[{<l>}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'full='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'full='>
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'full='> name:full)
                          op: assign_op.Equal
                          rhs: (rhs_word__Empty)
                        )
                      ]
                      redirects: []
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
                (CaseArm
                  left: <m>
                  pattern: (pat.Words words:[{<m>}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'mount='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'mount='>
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'mount='> name:mount)
                          op: assign_op.Equal
                          rhs: {(DQ ($ Id.VSub_DollarName mount) <' '> ($ Id.VSub_DollarName OPTARG))}
                        )
                      ]
                      redirects: []
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
                (CaseArm
                  left: <n>
                  pattern: (pat.Words words:[{<n>}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'show='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'show='>
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'show='> name:show)
                          op: assign_op.Equal
                          rhs: {(DQ <'print -u2 --'>)}
                        )
                      ]
                      redirects: []
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
                (CaseArm
                  left: <o>
                  pattern: (pat.Words words:[{<o>}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'output='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'output='>
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'output='> name:output)
                          op: assign_op.Equal
                          rhs: {($ Id.VSub_DollarName OPTARG)}
                        )
                      ]
                      redirects: []
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
                (CaseArm
                  left: <s>
                  pattern: (pat.Words words:[{<s>}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'SHELL='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'SHELL='>
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'SHELL='> name:SHELL)
                          op: assign_op.Equal
                          rhs: {($ Id.VSub_DollarName OPTARG)}
                        )
                      ]
                      redirects: []
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
                (CaseArm
                  left: <t>
                  pattern: (pat.Words words:[{<t>}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'trace='>
                      pairs: [
                        (AssignPair
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                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'trace='> name:trace)
                          op: assign_op.Equal
                          rhs: 
                            {
                              (DQ ($ Id.VSub_DollarName trace) <'/trace='> 
                                ($ Id.VSub_DollarName OPTARG)
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                      redirects: []
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                  right: <Id.Op_DSemi _>
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                  middle: <Id.Right_CasePat _>
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                          action: [
                            (command.ShAssignment
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                              pairs: [
                                (AssignPair
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                                  lhs: 
                                    (sh_lhs_expr.Name
                                      left: <Id.Lit_VarLike 'version='>
                                      name: version
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                                  op: assign_op.Equal
                                  rhs: {($ Id.VSub_DollarName OPTARG)}
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                              ]
                              redirects: []
                            )
                          ]
                          right: <Id.Op_DSemi _>
                        )
                        (CaseArm
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                          pattern: (pat.Words words:[{<Id.Lit_Star '*'>}])
                          middle: <Id.Right_CasePat _>
                          action: [
                            (command.ShAssignment
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                              pairs: [
                                (AssignPair
                                  left: <Id.Lit_VarLike 'version='>
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              else_kw: <Id.KW_Else else>
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                  redirects: []
                )
                (command.ShAssignment
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                  pairs: [
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                  redirects: []
                )
                (command.ShAssignment
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              redirects: []
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              iter_names: [x]
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          rhs: (rhs_word__Empty)
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      redirects: []
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    (command.If
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      arms: [
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          keyword: <Id.KW_If if>
          cond: 
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                  more_env: []
                  words: [{<test>} {<-f>} {(DQ ($ Id.VSub_DollarName version))}]
                  redirects: []
                  do_fork: T
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          then_kw: <Id.KW_Then then>
          action: [
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              if_kw: <Id.KW_If if>
              arms: [
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                  keyword: <Id.KW_If if>
                  cond: 
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                          more_env: []
                          words: [{<test>} {<-d>} {($ Id.VSub_DollarName dir) <'/3d'>}]
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                          do_fork: T
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                      pairs: [
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                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'dir='> name:dir)
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                      ]
                      redirects: []
                    )
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                  spids: [1727 1737]
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              ]
              else_action: []
              fi_kw: <Id.KW_Fi fi>
              redirects: []
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            (command.Case
              case_kw: <Id.KW_Case case>
              to_match: 
                (case_arg.Word
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                  pattern: 
                    (pat.Words
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                          <Id.Lit_Colon ':'> <Id.Lit_Star '*'>
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                  middle: <Id.Right_CasePat _>
                  action: []
                  right: <Id.Op_DSemi _>
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                (CaseArm
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                  middle: <Id.Right_CasePat _>
                  action: [
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                      more_env: []
                      words: [
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                      redirects: []
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              redirects: []
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                  middle: <Id.Right_CasePat _>
                  action: []
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                  action: [
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                      more_env: []
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                        {<export>}
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                      redirects: []
                      do_fork: T
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                  right: <Id.Op_DSemi _>
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              ]
              arms_end: <Id.KW_Esac esac>
              redirects: []
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            (command.ShAssignment
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              pairs: [
                (AssignPair
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                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'exp='> name:exp)
                  op: assign_op.Equal
                  rhs: 
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              ]
              redirects: []
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            (command.Case
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              to_match: 
                (case_arg.Word
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                    {($ Id.VSub_DollarName abi) <Id.Lit_Colon ':'> <-> <Id.Lit_Colon ':'> 
                      ($ Id.VSub_DollarName version)
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              arms: [
                (CaseArm
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                  pattern: 
                    (pat.Words
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                          ($ Id.VSub_DollarName dir) <'/'> <Id.Lit_Star '*'>
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                      ]
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                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.ShAssignment
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                      pairs: [
                        (AssignPair
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                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'v='> name:v)
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                          rhs: 
                            {
                              (BracedVarSub
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                                var_name: version
                                suffix_op: 
                                  (suffix_op.Unary
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                                    arg_word: {($ Id.VSub_DollarName dir) <Id.Lit_Slash '/'>}
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                                right: <Id.Right_DollarBrace '}'>
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                        )
                      ]
                      redirects: []
                    )
                    (command.ForEach
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                      iter_names: [a]
                      iterable: (for_iter.Words words:[{($ Id.VSub_DollarName abi)}])
                      body: 
                        (command.DoGroup
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                          children: [
                            (command.ShAssignment
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                              pairs: [
                                (AssignPair
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                                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'd='> name:d)
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                                  rhs: 
                                    {
                                      (BracedVarSub
                                        left: <Id.Left_DollarBrace '${'>
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                                        var_name: a
                                        suffix_op: 
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                                )
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                              redirects: []
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                            (command.ShAssignment
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                              pairs: [
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                                    {
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                                      )
                                    }
                                )
                              ]
                              redirects: []
                            )
                            (command.ShAssignment
                              left: <Id.Lit_VarLike 'exp='>
                              pairs: [
                                (AssignPair
                                  left: <Id.Lit_VarLike 'exp='>
                                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'exp='> name:exp)
                                  op: assign_op.Equal
                                  rhs: 
                                    {
                                      (DQ ($ Id.VSub_DollarName exp) <' _RLD'> (${ Id.VSub_Name a) 
                                        <'_LIST='> ($ Id.VSub_DollarName d) <'/'> ($ Id.VSub_DollarName v) <':DEFAULT'>
                                      )
                                    }
                                )
                              ]
                              redirects: []
                            )
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                        )
                      redirects: []
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                  right: <Id.Op_DSemi _>
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                (CaseArm
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                  middle: <Id.Right_CasePat _>
                  action: [
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                      pairs: [
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                          left: <Id.Lit_VarLike 'v='>
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                          rhs: 
                            {
                              (BracedVarSub
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                            }
                        )
                      ]
                      redirects: []
                    )
                    (command.ShAssignment
                      left: <Id.Lit_VarLike 's='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 's='>
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 's='> name:s)
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                          rhs: 
                            {
                              (BracedVarSub
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                                var_name: version
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                                    arg_word: {<Id.Lit_Other '*'> <.>}
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                        )
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                      redirects: []
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                    (command.If
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                                  more_env: []
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                                    {<-f>}
                                    {(${ Id.VSub_Name v) <-n32.> ($ Id.VSub_DollarName s)}
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                                  redirects: []
                                  do_fork: T
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                          action: [
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                              pairs: [
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                                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'exp='> name:exp)
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                                  rhs: 
                                    {
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                                        <':DEFAULT _RLD_LIST='> (${ Id.VSub_Name v) <-o32.> ($ Id.VSub_DollarName s) <':DEFAULT'>
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                        (IfArm
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                                    {<-f>}
                                    {(${ Id.VSub_Name v) <-o32.> ($ Id.VSub_DollarName s)}
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                                  redirects: []
                                  do_fork: T
                                )
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                          then_kw: <Id.KW_Then then>
                          action: [
                            (command.ShAssignment
                              left: <Id.Lit_VarLike 'exp='>
                              pairs: [
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                                  left: <Id.Lit_VarLike 'exp='>
                                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'exp='> name:exp)
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                                  rhs: 
                                    {
                                      (DQ ($ Id.VSub_DollarName exp) <' _RLD64_LIST='> 
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                                    }
                                )
                              ]
                              redirects: []
                            )
                          ]
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                      else_kw: <Id.KW_Else else>
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                              lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'exp='> name:exp)
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                              rhs: 
                                {
                                  (DQ ($ Id.VSub_DollarName exp) <' _RLD_LIST='> 
                                    ($ Id.VSub_DollarName version) <':DEFAULT'>
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                          redirects: []
                        )
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                      fi_kw: <Id.KW_Fi fi>
                      redirects: []
                    )
                    (command.If
                      if_kw: <Id.KW_If if>
                      arms: [
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                          keyword: <Id.KW_If if>
                          cond: 
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                              commands: [
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                                  blame_tok: <test>
                                  more_env: []
                                  words: [
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                                    {<-f>}
                                    {(${ Id.VSub_Name dir) <'/lib/libdir64.'> ($ Id.VSub_DollarName s)}
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                                  redirects: []
                                  do_fork: T
                                )
                              ]
                            )
                          then_kw: <Id.KW_Then then>
                          action: [
                            (command.ShAssignment
                              left: <Id.Lit_VarLike 'exp='>
                              pairs: [
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                                  left: <Id.Lit_VarLike 'exp='>
                                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'exp='> name:exp)
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                                  rhs: 
                                    {
                                      (DQ ($ Id.VSub_DollarName exp) <':'> (${ Id.VSub_Name dir) 
                                        <'/lib/libdir64.'> ($ Id.VSub_DollarName s)
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                              redirects: []
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                          spids: [2027 2040]
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                      else_action: []
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                      redirects: []
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              arms_end: <Id.KW_Esac esac>
              redirects: []
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            (command.Simple
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              more_env: []
              words: [{<export>} {($ Id.VSub_DollarName exp)}]
              redirects: []
              do_fork: T
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            (command.Case
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              to_match: (case_arg.Word w:{($ Id.VSub_DollarName mount)})
              arms_start: <Id.KW_In in>
              arms: [
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                  middle: <Id.Right_CasePat _>
                  action: [
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                      more_env: []
                      words: [
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                        {<Id.Lit_VarLike '__='> 
                          (BracedVarSub
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                      redirects: []
                      do_fork: T
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                  right: <Id.Op_DSemi _>
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                  middle: <Id.Right_CasePat _>
                  action: [
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                      blame_tok: <unset>
                      more_env: []
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                      redirects: []
                      do_fork: T
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                  right: <Id.Op_DSemi _>
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              arms_end: <Id.KW_Esac esac>
              redirects: []
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            (command.Simple
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              words: [{<unset>} {<VPATH>}]
              redirects: []
              do_fork: T
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          more_env: []
          words: [
            {<print>}
            {<-u2>}
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              (DQ ($ Id.VSub_DollarName command) <': '> ($ Id.VSub_DollarName version) 
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          ]
          redirects: []
          do_fork: T
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          arms: [
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          arms_end: <Id.KW_Esac esac>
          redirects: []
        )
        (command.ShAssignment
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          pairs: [
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              lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'version='> name:version)
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          redirects: []
        )
        (command.ShAssignment
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          pairs: [
            (AssignPair
              left: <Id.Lit_VarLike 'options='>
              lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'options='> name:options)
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          redirects: []
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      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
    (command.Case
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      to_match: (case_arg.Word w:{($ Id.VSub_DollarName SHELL)})
      arms_start: <Id.KW_In in>
      arms: [
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          middle: <Id.Right_CasePat _>
          action: [
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              pairs: [
                (AssignPair
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                  rhs: 
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                      (CommandSub
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                        child: 
                          (command.Simple
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                            more_env: []
                            words: [{<whence>} {<ksh>}]
                            redirects: [
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                            do_fork: T
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                )
              ]
              redirects: []
            )
            (command.ShAssignment
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              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'SHELL='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'SHELL='> name:SHELL)
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                  rhs: 
                    {
                      (CommandSub
                        left_token: <Id.Left_Backtick '`'>
                        child: 
                          (command.Simple
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                            more_env: [
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                                left: <Id.Lit_VarLike 'PATH='>
                                name: PATH
                                val: 
                                  {($ Id.VSub_DollarName dir) <'/bin'> <Id.Lit_Colon ':'> 
                                    ($ Id.VSub_DollarName PATH)
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                              )
                            ]
                            words: [{<whence>} {<-p>} {($ Id.VSub_DollarName t)}]
                            redirects: [
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                                op: <Id.Redir_Great '2>'>
                                loc: (redir_loc.Fd fd:2)
                                arg: {<'/dev/null'>}
                              )
                            ]
                            do_fork: T
                          )
                        right: <Id.Backtick_Right '`'>
                      )
                    }
                )
              ]
              redirects: []
            )
          ]
          right: <Id.Op_DSemi _>
        )
      ]
      arms_end: <Id.KW_Esac esac>
      redirects: []
    )
    (command.ShAssignment
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      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'SHELL='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'SHELL='> name:SHELL)
          op: assign_op.Equal
          rhs: 
            {
              (BracedVarSub
                left: <Id.Left_DollarBrace '${'>
                token: <Id.VSub_Name SHELL>
                var_name: SHELL
                suffix_op: 
                  (suffix_op.Unary
                    op: <Id.VTest_ColonHyphen _>
                    arg_word: {($ Id.VSub_DollarName shell)}
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                right: <Id.Right_DollarBrace '}'>
              )
            }
        )
      ]
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'SHELL='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'SHELL='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'SHELL='> name:SHELL)
          op: assign_op.Equal
          rhs: 
            {
              (BracedVarSub
                left: <Id.Left_DollarBrace '${'>
                token: <Id.VSub_Name SHELL>
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                suffix_op: 
                  (suffix_op.Unary
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                    arg_word: {<Id.Lit_Slash '/'> <bin> <Id.Lit_Slash '/'> <sh>}
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                right: <Id.Right_DollarBrace '}'>
              )
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        )
      ]
      redirects: []
    )
    (command.Simple
      blame_tok: <export>
      more_env: []
      words: [{<export>} {<SHELL>}]
      redirects: []
      do_fork: T
    )
    (command.Case
      case_kw: <Id.KW_Case case>
      to_match: 
        (case_arg.Word
          w: 
            {
              (CommandSub
                left_token: <Id.Left_Backtick '`'>
                child: 
                  (command.Simple
                    blame_tok: <vpath>
                    more_env: []
                    words: [{<vpath>} {<'/'> <Id.Lit_Pound '#'> <'option/3d'>}]
                    redirects: [
                      (Redir
                        op: <Id.Redir_Great '2>'>
                        loc: (redir_loc.Fd fd:2)
                        arg: {<'/dev/null'>}
                      )
                    ]
                    do_fork: T
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                right: <Id.Backtick_Right '`'>
              )
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        )
      arms_start: <Id.KW_In in>
      arms: [
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          pattern: (pat.Words words:[{<Id.Lit_Star '*'> <'/2d'>}])
          middle: <Id.Right_CasePat _>
          action: [
            (command.Simple
              blame_tok: <Id.VSub_DollarName '$show'>
              more_env: []
              words: [{($ Id.VSub_DollarName show)} {<vpath>} {($ Id.VSub_DollarName mount)}]
              redirects: []
              do_fork: T
            )
          ]
          right: <Id.Op_DSemi _>
        )
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      arms_end: <Id.KW_Esac esac>
      redirects: []
    )
    (command.Case
      case_kw: <Id.KW_Case case>
      to_match: 
        (case_arg.Word
          w: 
            {($ Id.VSub_Number 1) <Id.Lit_Colon ':'> ($ Id.VSub_Pound '#') <Id.Lit_Colon ':'> 
              ($ Id.VSub_DollarName options)
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        )
      arms_start: <Id.KW_In in>
      arms: [
        (CaseArm
          left: <->
          pattern: (pat.Words words:[{<-> <Id.Lit_Star '*'>}])
          middle: <Id.Right_CasePat _>
          action: []
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        (CaseArm
          left: <Id.Lit_Star '*'>
          pattern: 
            (pat.Words
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                {<Id.Lit_Star '*'> <Id.Lit_Colon ':'> <Id.Lit_Star '*'> <Id.Lit_Colon ':'> 
                  <Id.Lit_QMark '?'> <Id.Lit_Star '*'>
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          middle: <Id.Right_CasePat _>
          action: [
            (command.ShAssignment
              left: <Id.Lit_VarLike 'shell='>
              pairs: [
                (AssignPair
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                  op: assign_op.Equal
                  rhs: {(DQ ($ Id.VSub_DollarName SHELL) <' '> ($ Id.VSub_DollarName options))}
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              redirects: []
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          ]
          right: <Id.Op_DSemi _>
        )
        (CaseArm
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          pattern: (pat.Words words:[{<Id.Lit_Star '*'>}])
          middle: <Id.Right_CasePat _>
          action: [
            (command.ShAssignment
              left: <Id.Lit_VarLike 't='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 't='>
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                  rhs: 
                    {
                      (CommandSub
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                          (command.Simple
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                            more_env: []
                            words: [{<whence>} {($ Id.VSub_Number 1)}]
                            redirects: [
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                            do_fork: T
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            (command.ShAssignment
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              pairs: [
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                      (CommandSub
                        left_token: <Id.Left_Backtick '`'>
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                          (command.Simple
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                            redirects: [
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                            do_fork: T
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                        right: <Id.Backtick_Right '`'>
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                )
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              redirects: []
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            (command.Case
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              arms_start: <Id.KW_In in>
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                    (command.ShAssignment
                      left: <Id.Lit_VarLike 'shell='>
                      pairs: [
                        (AssignPair
                          left: <Id.Lit_VarLike 'shell='>
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'shell='> name:shell)
                          op: assign_op.Equal
                          rhs: (rhs_word__Empty)
                        )
                      ]
                      redirects: []
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
              ]
              arms_end: <Id.KW_Esac esac>
              redirects: []
            )
          ]
          right: <Id.Op_DSemi _>
        )
      ]
      arms_end: <Id.KW_Esac esac>
      redirects: []
    )
    (command.Case
      case_kw: <Id.KW_Case case>
      to_match: (case_arg.Word w:{($ Id.VSub_DollarName show)})
      arms_start: <Id.KW_In in>
      arms: [
        (CaseArm
          left: <Id.Left_DoubleQuote '"'>
          pattern: (pat.Words words:[{(DQ )}])
          middle: <Id.Right_CasePat _>
          action: [
            (command.Simple
              blame_tok: <exec>
              more_env: []
              words: [{<exec>} {($ Id.VSub_DollarName shell)} {(DQ ($ Id.VSub_At '@'))}]
              redirects: []
              do_fork: T
            )
          ]
          right: <Id.Op_DSemi _>
        )
        (CaseArm
          left: <Id.Lit_Star '*'>
          pattern: (pat.Words words:[{<Id.Lit_Star '*'>}])
          middle: <Id.Right_CasePat _>
          action: [
            (command.Case
              case_kw: <Id.KW_Case case>
              to_match: (case_arg.Word w:{($ Id.VSub_DollarName version)})
              arms_start: <Id.KW_In in>
              arms: [
                (CaseArm
                  left: <Id.Left_DoubleQuote '"'>
                  pattern: (pat.Words words:[{(DQ )}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.Simple
                      blame_tok: <Id.VSub_DollarName '$show'>
                      more_env: []
                      words: [
                        {($ Id.VSub_DollarName show)}
                        {<Id.Lit_VarLike '__='> (DQ <'\''> ($ Id.VSub_DollarName __) <'\''>)}
                        {<exec>}
                        {($ Id.VSub_DollarName shell)}
                        {(DQ ($ Id.VSub_At '@'))}
                      ]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
                (CaseArm
                  left: <Id.Lit_Star '*'>
                  pattern: (pat.Words words:[{<Id.Lit_Star '*'>}])
                  middle: <Id.Right_CasePat _>
                  action: [
                    (command.Simple
                      blame_tok: <Id.VSub_DollarName '$show'>
                      more_env: []
                      words: [
                        {($ Id.VSub_DollarName show)}
                        {<Id.Lit_VarLike '__='> (DQ <'\''> ($ Id.VSub_DollarName __) <'\''>)}
                        {($ Id.VSub_DollarName exp)}
                        {<exec>}
                        {($ Id.VSub_DollarName shell)}
                        {(DQ ($ Id.VSub_At '@'))}
                      ]
                      redirects: []
                      do_fork: T
                    )
                  ]
                  right: <Id.Op_DSemi _>
                )
              ]
              arms_end: <Id.KW_Esac esac>
              redirects: []
            )
          ]
          right: <Id.Op_DSemi _>
        )
      ]
      arms_end: <Id.KW_Esac esac>
      redirects: []
    )
  ]
)