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          rhs: {(DQ <'usage: dircmp [-d] [-s] [-wn] dir1 dir2'>)}
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          spids: [193]
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                            redirects: []
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                            do_fork: T
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              arms: [
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                  action: []
                  spids: [240 242 244 -1]
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                (case_arm
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                            {<-h>}
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              redirects: []
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                              loc: (redir_loc.Fd fd:1)
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                          more_env: []
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                (command.Simple
                  words: [
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                    {<-h>}
                    {
                      (DQ <'diff of '> ($ Id.VSub_DollarName a) <' in '> ($ Id.VSub_DollarName D1) 
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                  more_env: []
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              negated: F
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            (command.If
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                    (condition.Shell
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                                        {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') 
                                          <status>
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                          redirects: []
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                  action: [
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                        (assign_pair
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                      redirects: []
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      cond: (condition.Shell commands:[(C {<getopts>} {<dsw> <Id.Lit_Colon ':'>} {<i>})])
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                        (assign_pair
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                          spids: [811]
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                      redirects: []
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                        (assign_pair
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'Sflag='> name:Sflag)
                          op: assign_op.Equal
                          rhs: {<1>}
                          spids: [820]
                        )
                      ]
                      redirects: []
                    )
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                              (command_sub
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                                      {($ Id.VSub_DollarName OPTARG)}
                                      {<Id.Lit_Other '+'>}
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                                    redirects: [
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                                        loc: (redir_loc.Fd fd:2)
                                        arg: {<'/dev/null'>}
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            )
          action: [
            (C {<echo>} {($ Id.VSub_DollarName USAGE)})
            (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<1>})
          ]
          spids: [927 939]
        )
        (if_arm
          cond: 
            (condition.Shell
              commands: [
                (C {<Id.Lit_LBracket '['>} {<Id.KW_Bang '!'>} {<-d>} {(DQ ($ Id.VSub_DollarName D1))} 
                  {<Id.Lit_RBracket ']'>}
                )
              ]
            )
          action: [
            (C {<echo>} {($ Id.VSub_DollarName D1)} {<not>} {<a>} {<directory>} {<Id.KW_Bang '!'>})
            (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<2>})
          ]
          spids: [950 964]
        )
        (if_arm
          cond: 
            (condition.Shell
              commands: [
                (C {<Id.Lit_LBracket '['>} {<Id.KW_Bang '!'>} {<-d>} {(DQ ($ Id.VSub_DollarName D2))} 
                  {<Id.Lit_RBracket ']'>}
                )
              ]
            )
          action: [
            (C {<echo>} {($ Id.VSub_DollarName D2)} {<not>} {<a>} {<directory>} {<Id.KW_Bang '!'>})
            (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<2>})
          ]
          spids: [983 997]
        )
      ]
      else_action: []
      redirects: []
    )
    (C {<cd>} {(DQ ($ Id.VSub_DollarName D1))})
    (command.Pipeline
      children: [
        (C {<find>} {<.>} {<-print>})
        (command.Simple
          words: [{<sort>}]
          redirects: [
            (redir
              op: <Id.Redir_Great '>'>
              loc: (redir_loc.Fd fd:1)
              arg: {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <a>}
            )
          ]
          more_env: []
          do_fork: T
        )
      ]
      negated: F
      stderr_indices: []
    )
    (C {<cd>} {(DQ ($ Id.VSub_DollarName D0))})
    (C {<cd>} {(DQ ($ Id.VSub_DollarName D2))})
    (command.Pipeline
      children: [
        (C {<find>} {<.>} {<-print>})
        (command.Simple
          words: [{<sort>}]
          redirects: [
            (redir
              op: <Id.Redir_Great '>'>
              loc: (redir_loc.Fd fd:1)
              arg: {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <b>}
            )
          ]
          more_env: []
          do_fork: T
        )
      ]
      negated: F
      stderr_indices: []
    )
    (command.Pipeline
      children: [
        (C {<comm>} {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <a>} 
          {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <b>}
        )
        (C {<sed>} {<-n>} {<-e>} 
          {(DQ <'/^\t\t/w '> ($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <c>)} {<-e>} {(DQ <'/^\t[^\t]/w '> ($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <d>)} {<-e>} 
          {(DQ <'/^[^\t]/w '> ($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <e>)}
        )
      ]
      negated: F
      stderr_indices: []
    )
    (C {<rm>} {<-f>} {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <a>} 
      {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <b>}
    )
    (C {<pr>} {<-w> (${ Id.VSub_Name width)} {<-h>} 
      {(DQ ($ Id.VSub_DollarName D1) <' only and '> ($ Id.VSub_DollarName D2) <' only'>)} {<-m>} {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <e>} 
      {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <d>}
    )
    (C {<rm>} {<-f>} {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <e>} 
      {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <d>}
    )
    (command.Simple
      words: [{<sed>} {<-e>} {(SQ <'s/..//'>)} {<-e>} {(SQ <'s/\\([^-a-zA-Z0-9/_.]\\)/\\\\\\1/g'>)}]
      redirects: [
        (redir
          op: <Id.Redir_Less '<'>
          loc: (redir_loc.Fd fd:0)
          arg: {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <c>}
        )
        (redir
          op: <Id.Redir_Great '>'>
          loc: (redir_loc.Fd fd:1)
          arg: {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <f>}
        )
      ]
      more_env: []
      do_fork: T
    )
    (command.Pipeline
      children: [
        (C {<cat>} {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <f>})
        (C {<xargs>} {<ls>} {<-lLgnd>})
        (command.Simple
          words: [{<sed>} {<-e>} {(SQ <'/^[bc]/ s/, *//'>)} {<-e>} {(SQ <'/^l/ s/ -> .*//'>)}]
          redirects: [
            (redir
              op: <Id.Redir_Great '>'>
              loc: (redir_loc.Fd fd:1)
              arg: {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <i>}
            )
            (redir op:<Id.Redir_Great '2>'> loc:(redir_loc.Fd fd:2) arg:{<'/dev/null'>})
          ]
          more_env: []
          do_fork: T
        )
      ]
      negated: F
      stderr_indices: []
    )
    (C {<cd>} {(DQ ($ Id.VSub_DollarName D0))})
    (C {<cd>} {(DQ ($ Id.VSub_DollarName D1))})
    (command.Pipeline
      children: [
        (C {<cat>} {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <f>})
        (C {<xargs>} {<ls>} {<-lLgnd>})
        (command.Simple
          words: [{<sed>} {<-e>} {(SQ <'/^[bc]/ s/, *//'>)} {<-e>} {(SQ <'/^l/ s/ -> .*//'>)}]
          redirects: [
            (redir
              op: <Id.Redir_Great '>'>
              loc: (redir_loc.Fd fd:1)
              arg: {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <h>}
            )
            (redir op:<Id.Redir_Great '2>'> loc:(redir_loc.Fd fd:2) arg:{<'/dev/null'>})
          ]
          more_env: []
          do_fork: T
        )
      ]
      negated: F
      stderr_indices: []
    )
    (C {<cd>} {(DQ ($ Id.VSub_DollarName D0))})
    (command.Simple
      words: []
      redirects: [
        (redir
          op: <Id.Redir_Great '>'>
          loc: (redir_loc.Fd fd:1)
          arg: {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <g>}
        )
      ]
      more_env: []
      do_fork: F
    )
    (command.Pipeline
      children: [
        (command.WhileUntil
          keyword: <Id.KW_While while>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.AndOr
                      ops: [Id.Op_DAmp]
                      children: [
                        (C {<read>} {<-u3>} {<tmp>} {<tmp>} {<tmp>} {<fsize1>} {<tmp>} {<tmp>} {<tmp>} {<a>})
                        (C {<read>} {<-u4>} {<tmp>} {<tmp>} {<tmp>} {<fsize2>} {<tmp>} {<tmp>} {<tmp>} {<b>})
                      ]
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          body: 
            (command.DoGroup
              children: [
                (command.If
                  arms: [
                    (if_arm
                      cond: 
                        (condition.Shell
                          commands: [
                            (command.Sentence
                              child: 
                                (command.DBracket
                                  expr: 
                                    (bool_expr.Binary
                                      op_id: Id.BoolBinary_GlobNEqual
                                      left: {(DQ ($ Id.VSub_DollarName a))}
                                      right: {(DQ ($ Id.VSub_DollarName b))}
                                    )
                                  redirects: []
                                )
                              terminator: <Id.Op_Semi _>
                            )
                          ]
                        )
                      action: [
                        (command.WhileUntil
                          keyword: <Id.KW_While while>
                          cond: 
                            (condition.Shell
                              commands: [
                                (command.Sentence
                                  child: 
                                    (command.DBracket
                                      expr: 
                                        (bool_expr.Binary
                                          op_id: Id.Op_Less
                                          left: {(DQ ($ Id.VSub_DollarName a))}
                                          right: {(DQ ($ Id.VSub_DollarName b))}
                                        )
                                      redirects: []
                                    )
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                          body: 
                            (command.DoGroup
                              children: [
                                (command.If
                                  arms: [
                                    (if_arm
                                      cond: 
                                        (condition.Shell
                                          commands: [
                                            (command.DParen
                                              child: 
                                                (arith_expr.Binary
                                                  op_id: Id.Arith_NEqual
                                                  left: ($ Id.Lit_ArithVarLike Sflag)
                                                  right: {<Id.Lit_Digits 1>}
                                                )
                                              redirects: []
                                            )
                                          ]
                                        )
                                      action: [
                                        (C {<echo>} {(DQ <'different\t'> ($ Id.VSub_DollarName a))})
                                        (C {<dodiffs>})
                                      ]
                                      spids: [1501 1515]
                                    )
                                  ]
                                  else_action: []
                                  redirects: []
                                )
                                (C {<read>} {<-u3>} {<tmp>} {<tmp>} {<tmp>} {<fsize1>} {<tmp>} {<tmp>} {<tmp>} 
                                  {<a>}
                                )
                              ]
                            )
                          redirects: []
                        )
                        (command.WhileUntil
                          keyword: <Id.KW_While while>
                          cond: 
                            (condition.Shell
                              commands: [
                                (command.Sentence
                                  child: 
                                    (command.DBracket
                                      expr: 
                                        (bool_expr.Binary
                                          op_id: Id.Op_Great
                                          left: {(DQ ($ Id.VSub_DollarName a))}
                                          right: {(DQ ($ Id.VSub_DollarName b))}
                                        )
                                      redirects: []
                                    )
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                          body: 
                            (command.DoGroup
                              children: [
                                (command.If
                                  arms: [
                                    (if_arm
                                      cond: 
                                        (condition.Shell
                                          commands: [
                                            (command.DParen
                                              child: 
                                                (arith_expr.Binary
                                                  op_id: Id.Arith_NEqual
                                                  left: ($ Id.Lit_ArithVarLike Sflag)
                                                  right: {<Id.Lit_Digits 1>}
                                                )
                                              redirects: []
                                            )
                                          ]
                                        )
                                      action: [
                                        (C {<echo>} {(DQ <'different\t'> ($ Id.VSub_DollarName b))})
                                        (C {<dodiffs>})
                                      ]
                                      spids: [1575 1589]
                                    )
                                  ]
                                  else_action: []
                                  redirects: []
                                )
                                (C {<read>} {<-u4>} {<tmp>} {<tmp>} {<tmp>} {<fsize2>} {<tmp>} {<tmp>} {<tmp>} 
                                  {<b>}
                                )
                              ]
                            )
                          redirects: []
                        )
                      ]
                      spids: [1461 1478]
                    )
                  ]
                  else_action: []
                  redirects: []
                )
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'cmpdiff='> name:cmpdiff)
                      op: assign_op.Equal
                      rhs: {<0>}
                      spids: [1632]
                    )
                  ]
                  redirects: []
                )
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'sizediff='> name:sizediff)
                      op: assign_op.Equal
                      rhs: {<0>}
                      spids: [1636]
                    )
                  ]
                  redirects: []
                )
                (command.If
                  arms: [
                    (if_arm
                      cond: 
                        (condition.Shell
                          commands: [
                            (C {<Id.Lit_LBracket '['>} {<-d>} 
                              {(DQ ($ Id.VSub_DollarName D1)) <'/'> (DQ ($ Id.VSub_DollarName a))} {<Id.Lit_RBracket ']'>}
                            )
                          ]
                        )
                      action: [
                        (command.If
                          arms: [
                            (if_arm
                              cond: 
                                (condition.Shell
                                  commands: [
                                    (command.DParen
                                      child: 
                                        (arith_expr.Binary
                                          op_id: Id.Arith_NEqual
                                          left: ($ Id.Lit_ArithVarLike Sflag)
                                          right: {<Id.Lit_Digits 1>}
                                        )
                                      redirects: []
                                    )
                                  ]
                                )
                              action: [(C {<echo>} {(DQ <'directory\t'> ($ Id.VSub_DollarName a))})]
                              spids: [1659 1673]
                            )
                          ]
                          else_action: []
                          redirects: []
                        )
                      ]
                      spids: [1640 1657]
                    )
                    (if_arm
                      cond: 
                        (condition.Shell
                          commands: [
                            (C {<Id.Lit_LBracket '['>} {<-f>} 
                              {(DQ ($ Id.VSub_DollarName D1)) <'/'> (DQ ($ Id.VSub_DollarName a))} {<Id.Lit_RBracket ']'>}
                            )
                          ]
                        )
                      action: [
                        (command.If
                          arms: [
                            (if_arm
                              cond: 
                                (condition.Shell
                                  commands: [
                                    (command.DParen
                                      child: 
                                        (arith_expr.Binary
                                          op_id: Id.Arith_NEqual
                                          left: ($ Id.Lit_ArithVarLike fsize1)
                                          right: ($ Id.Lit_ArithVarLike fsize2)
                                        )
                                      redirects: []
                                    )
                                  ]
                                )
                              action: [
                                (command.ShAssignment
                                  pairs: [
                                    (assign_pair
                                      lhs: 
                                        (sh_lhs_expr.Name
                                          left: <Id.Lit_VarLike 'sizediff='>
                                          name: sizediff
                                        )
                                      op: assign_op.Equal
                                      rhs: {<1>}
                                      spids: [1744]
                                    )
                                  ]
                                  redirects: []
                                )
                              ]
                              spids: [1727 1741]
                            )
                          ]
                          else_action: [
                            (C {<cmp>} {<-s>} 
                              {(DQ ($ Id.VSub_DollarName D1)) <'/'> (DQ ($ Id.VSub_DollarName a))} {(DQ ($ Id.VSub_DollarName D2)) <'/'> (DQ ($ Id.VSub_DollarName a))}
                            )
                            (command.ShAssignment
                              pairs: [
                                (assign_pair
                                  lhs: 
                                    (sh_lhs_expr.Name
                                      left: <Id.Lit_VarLike 'cmpdiff='>
                                      name: cmpdiff
                                    )
                                  op: assign_op.Equal
                                  rhs: {($ Id.VSub_QMark '?')}
                                  spids: [1772]
                                )
                              ]
                              redirects: []
                            )
                          ]
                          redirects: []
                        )
                        (command.If
                          arms: [
                            (if_arm
                              cond: 
                                (condition.Shell
                                  commands: [
                                    (command.DParen
                                      child: 
                                        (arith_expr.Binary
                                          op_id: Id.Arith_DAmp
                                          left: 
                                            (arith_expr.Binary
                                              op_id: Id.Arith_DEqual
                                              left: ($ Id.Lit_ArithVarLike sizediff)
                                              right: {<Id.Lit_Digits 0>}
                                            )
                                          right: 
                                            (arith_expr.Binary
                                              op_id: Id.Arith_DEqual
                                              left: ($ Id.Lit_ArithVarLike cmpdiff)
                                              right: {<Id.Lit_Digits 0>}
                                            )
                                        )
                                      redirects: []
                                    )
                                  ]
                                )
                              action: [
                                (command.If
                                  arms: [
                                    (if_arm
                                      cond: 
                                        (condition.Shell
                                          commands: [
                                            (command.DParen
                                              child: 
                                                (arith_expr.Binary
                                                  op_id: Id.Arith_NEqual
                                                  left: ($ Id.Lit_ArithVarLike Sflag)
                                                  right: {<Id.Lit_Digits 1>}
                                                )
                                              redirects: []
                                            )
                                          ]
                                        )
                                      action: [
                                        (C {<echo>} {(DQ <'same     \t'> ($ Id.VSub_DollarName a))})
                                      ]
                                      spids: [1803 1817]
                                    )
                                  ]
                                  else_action: []
                                  redirects: []
                                )
                              ]
                              spids: [1779 1801]
                            )
                          ]
                          else_action: [
                            (C {<echo>} {(DQ <'different\t'> ($ Id.VSub_DollarName a))})
                            (command.If
                              arms: [
                                (if_arm
                                  cond: 
                                    (condition.Shell
                                      commands: [
                                        (command.DParen
                                          child: 
                                            (arith_expr.Binary
                                              op_id: Id.Arith_DEqual
                                              left: ($ Id.Lit_ArithVarLike Dflag)
                                              right: {<Id.Lit_Digits 1>}
                                            )
                                          redirects: []
                                        )
                                      ]
                                    )
                                  action: [(C {<dodiffs>})]
                                  spids: [1840 1854]
                                )
                              ]
                              else_action: []
                              redirects: []
                            )
                          ]
                          redirects: []
                        )
                      ]
                      spids: [1686 1703]
                    )
                    (if_arm
                      cond: 
                        (condition.Shell
                          commands: [
                            (command.DParen
                              child: 
                                (arith_expr.Binary
                                  op_id: Id.Arith_NEqual
                                  left: ($ Id.Lit_ArithVarLike Sflag)
                                  right: {<Id.Lit_Digits 1>}
                                )
                              redirects: []
                            )
                          ]
                        )
                      action: [(C {<echo>} {(DQ <'special  \t'> ($ Id.VSub_DollarName a))})]
                      spids: [1866 1880]
                    )
                  ]
                  else_action: []
                  redirects: []
                )
              ]
            )
          redirects: [
            (redir
              op: <Id.Redir_Less '3<'>
              loc: (redir_loc.Fd fd:3)
              arg: {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <h>}
            )
            (redir
              op: <Id.Redir_Less '4<'>
              loc: (redir_loc.Fd fd:4)
              arg: {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <i>}
            )
          ]
        )
        (C {<pr>} {<-r>} {<-h>} 
          {(DQ <'Comparison of '> ($ Id.VSub_DollarName D1) <' '> ($ Id.VSub_DollarName D2))}
        )
      ]
      negated: F
      stderr_indices: []
    )
    (command.If
      arms: [
        (if_arm
          cond: 
            (condition.Shell
              commands: [
                (command.DParen
                  child: 
                    (arith_expr.Binary
                      op_id: Id.Arith_DEqual
                      left: ($ Id.Lit_ArithVarLike Dflag)
                      right: {<Id.Lit_Digits 1>}
                    )
                  redirects: []
                )
              ]
            )
          action: [(C {<cat>} {($ Id.VSub_DollarName TEMPDIR) <'/dc'> ($ Id.VSub_Dollar '$') <g>})]
          spids: [1921 1934]
        )
      ]
      else_action: []
      redirects: []
    )
    (command.ControlFlow
      token: <Id.ControlFlow_Exit exit>
      arg_word: {($ Id.VSub_DollarName exitstat)}
    )
  ]
)