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              redirects: []
              do_fork: T
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            (command.AndOr
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                  more_env: []
                  words: [{<_init_completion>} {<-n>} {<Id.Lit_Equals '='>}]
                  redirects: []
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                        {<-G>}
                        {<-g>}
                        {<-h>}
                        {<-i>}
                        {<-l>}
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                        {<-p>}
                        {<-s>}
                        {<-t>}
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                        {<-W>}
                        {<-w>}
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                      more_env: []
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                      more_env: []
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                    (command.AndOr
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                              op_id: Id.BoolBinary_GlobDEqual
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                                    (CommandSub
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                                          blame_tok: <compgen>
                                          more_env: []
                                          words: [
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                                            {<-->}
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                                          redirects: []
                                          do_fork: T
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                              )
                            }
                        )
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                      redirects: []
                    )
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                                          op_id: Id.BoolBinary_GlobNEqual
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                                      right: <Id.Lit_DRightBracket ']]'>
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                                )
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                            )
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                          action: [
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                                    (sh_lhs_expr.Name
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                                  op: assign_op.Equal
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                                        words: [
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                                            (CommandSub
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                                                  blame_tok: <compgen>
                                                  more_env: []
                                                  words: [
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                                                    {<-W>}
                                                    {
                                                      (SQ <'name ipv6 ipv6-global ipv6-sitelocal\n'> 
                                                        <
'                    ipv6-linklocal ipv6-all ipv4 ipv4-all subject-ipv6=\n'
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                                                    }
                                                    {<-->}
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                                                  do_fork: T
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                                        ]
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                                      )
                                    }
                                )
                              ]
                              redirects: []
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                            (command.AndOr
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                                  expr: 
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                                      op_id: Id.BoolBinary_GlobDEqual
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                                  right: <Id.Lit_DRightBracket ']]'>
                                  redirects: []
                                )
                                (command.Simple
                                  blame_tok: <compopt>
                                  more_env: []
                                  words: [{<compopt>} {<-o>} {<nospace>}]
                                  redirects: []
                                  do_fork: T
                                )
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                            )
                          ]
                          spids: [166 180]
                        )
                      ]
                      else_action: []
                      fi_kw: <Id.KW_Fi fi>
                      redirects: []
                    )
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                )
                (CaseArm
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                  pattern: (pat.Words words:[{<-Q>}])
                  middle: <Id.Right_CasePat _>
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                  pattern: (pat.Words words:[{<-S>}])
                  middle: <Id.Right_CasePat _>
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                        (command.Simple
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                          more_env: []
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                          redirects: []
                          do_fork: T
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              do_fork: T
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          redirects: []
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      more_env: []
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      redirects: []
      do_fork: T
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)