(command.CommandList
  children: [
    (command.If
      if_kw: <Id.KW_If if>
      arms: [
        (IfArm
          keyword: <Id.KW_If if>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.Pipeline
                      negated: <Id.KW_Bang '!'>
                      children: [
                        (command.Simple
                          blame_tok: <sysctl>
                          more_env: []
                          words: [{<sysctl>} {<vfs.zfs.version.spa>}]
                          redirects: [
                            (Redir
                              op: <Id.Redir_Great '>'>
                              loc: (redir_loc.Fd fd:1)
                              arg: {<'/dev/null'>}
                            )
                            (Redir
                              op: <Id.Redir_GreatAnd '2>&'>
                              loc: (redir_loc.Fd fd:2)
                              arg: {<1>}
                            )
                          ]
                          do_fork: T
                        )
                      ]
                      ops: []
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {(DQ <'1..0 # SKIP system doesn\'t have ZFS loaded'>)}]
              redirects: []
              do_fork: T
            )
            (command.ControlFlow keyword:<Id.ControlFlow_Exit exit> arg_word:{<0>})
          ]
          spids: [95 110]
        )
      ]
      else_action: []
      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
    (command.If
      if_kw: <Id.KW_If if>
      arms: [
        (IfArm
          keyword: <Id.KW_If if>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.Simple
                      blame_tok: <Id.Lit_LBracket '['>
                      more_env: []
                      words: [
                        {<Id.Lit_LBracket '['>}
                        {
                          (CommandSub
                            left_token: <Id.Left_DollarParen '$('>
                            child: 
                              (command.Simple
                                blame_tok: <id>
                                more_env: []
                                words: [{<id>} {<-u>}]
                                redirects: []
                                do_fork: T
                              )
                            right: <Id.Eof_RParen _>
                          )
                        }
                        {<-ne>}
                        {<0>}
                        {<Id.Lit_RBracket ']'>}
                      ]
                      redirects: []
                      do_fork: T
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {(DQ <'1..0 # SKIP you must be root'>)}]
              redirects: []
              do_fork: T
            )
            (command.ControlFlow keyword:<Id.ControlFlow_Exit exit> arg_word:{<0>})
          ]
          spids: [126 143]
        )
      ]
      else_action: []
      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
    (command.Simple
      blame_tok: <echo>
      more_env: []
      words: [{<echo>} {(DQ <1..3>)}]
      redirects: []
      do_fork: T
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'TESTDIR='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'TESTDIR='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'TESTDIR='> name:TESTDIR)
          op: assign_op.Equal
          rhs: 
            {
              (CommandSub
                left_token: <Id.Left_DollarParen '$('>
                child: 
                  (command.Simple
                    blame_tok: <dirname>
                    more_env: []
                    words: [
                      {<dirname>}
                      {
                        (CommandSub
                          left_token: <Id.Left_DollarParen '$('>
                          child: 
                            (command.Simple
                              blame_tok: <realpath>
                              more_env: []
                              words: [{<realpath>} {($ Id.VSub_Number 0)}]
                              redirects: []
                              do_fork: T
                            )
                          right: <Id.Eof_RParen _>
                        )
                      }
                    ]
                    redirects: []
                    do_fork: T
                  )
                right: <Id.Eof_RParen _>
              )
            }
        )
      ]
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'MD='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'MD='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'MD='> name:MD)
          op: assign_op.Equal
          rhs: 
            {
              (CommandSub
                left_token: <Id.Left_Backtick '`'>
                child: 
                  (command.Simple
                    blame_tok: <mdconfig>
                    more_env: []
                    words: [{<mdconfig>} {<-at>} {<swap>} {<-s>} {<64m>}]
                    redirects: []
                    do_fork: T
                  )
                right: <Id.Backtick_Right '`'>
              )
            }
        )
      ]
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'MNT='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'MNT='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'MNT='> name:MNT)
          op: assign_op.Equal
          rhs: 
            {
              (CommandSub
                left_token: <Id.Left_Backtick '`'>
                child: 
                  (command.Simple
                    blame_tok: <mktemp>
                    more_env: []
                    words: [{<mktemp>} {<-dt>} {<acltools>}]
                    redirects: []
                    do_fork: T
                  )
                right: <Id.Backtick_Right '`'>
              )
            }
        )
      ]
      redirects: []
    )
    (command.Simple
      blame_tok: <zpool>
      more_env: []
      words: [
        {<zpool>}
        {<create>}
        {<-m>}
        {($ Id.VSub_DollarName MNT)}
        {<acltools>}
        {<'/dev/'> ($ Id.VSub_DollarName MD)}
      ]
      redirects: []
      do_fork: T
    )
    (command.If
      if_kw: <Id.KW_If if>
      arms: [
        (IfArm
          keyword: <Id.KW_If if>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.Simple
                      blame_tok: <Id.Lit_LBracket '['>
                      more_env: []
                      words: [
                        {<Id.Lit_LBracket '['>}
                        {($ Id.VSub_QMark '?')}
                        {<-ne>}
                        {<0>}
                        {<Id.Lit_RBracket ']'>}
                      ]
                      redirects: []
                      do_fork: T
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {(DQ <'not ok 1 - \'zpool create\' failed.'>)}]
              redirects: []
              do_fork: T
            )
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {(SQ <'Bail out!'>)}]
              redirects: []
              do_fork: T
            )
            (command.ControlFlow keyword:<Id.ControlFlow_Exit exit> arg_word:{<1>})
          ]
          spids: [221 234]
        )
      ]
      else_action: []
      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
    (command.Simple
      blame_tok: <echo>
      more_env: []
      words: [{<echo>} {(DQ <'ok 1'>)}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <cd>
      more_env: []
      words: [{<cd>} {($ Id.VSub_DollarName MNT)}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <perl>
      more_env: []
      words: [
        {<perl>}
        {($ Id.VSub_DollarName TESTDIR) <'/run'>}
        {($ Id.VSub_DollarName TESTDIR) <'/tools-nfs4-trivial.test'>}
      ]
      redirects: [(Redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})]
      do_fork: T
    )
    (command.If
      if_kw: <Id.KW_If if>
      arms: [
        (IfArm
          keyword: <Id.KW_If if>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.Simple
                      blame_tok: <Id.Lit_LBracket '['>
                      more_env: []
                      words: [
                        {<Id.Lit_LBracket '['>}
                        {($ Id.VSub_QMark '?')}
                        {<-eq>}
                        {<0>}
                        {<Id.Lit_RBracket ']'>}
                      ]
                      redirects: []
                      do_fork: T
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (command.Simple
              blame_tok: <echo>
              more_env: []
              words: [{<echo>} {(DQ <'ok 2'>)}]
              redirects: []
              do_fork: T
            )
          ]
          spids: [282 295]
        )
      ]
      else_kw: <Id.KW_Else else>
      else_action: [
        (command.Simple
          blame_tok: <echo>
          more_env: []
          words: [{<echo>} {(DQ <'not ok 2'>)}]
          redirects: []
          do_fork: T
        )
      ]
      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
    (command.Simple blame_tok:<cd> more_env:[] words:[{<cd>} {<'/'>}] redirects:[] do_fork:T)
    (command.Simple
      blame_tok: <zpool>
      more_env: []
      words: [{<zpool>} {<destroy>} {<-f>} {<acltools>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <rmdir>
      more_env: []
      words: [{<rmdir>} {($ Id.VSub_DollarName MNT)}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <mdconfig>
      more_env: []
      words: [{<mdconfig>} {<-du>} {($ Id.VSub_DollarName MD)}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <echo>
      more_env: []
      words: [{<echo>} {(DQ <'ok 3'>)}]
      redirects: []
      do_fork: T
    )
  ]
)