(command.Pipeline
  children: [
    (command.Simple
      blame_tok: <apropos>
      more_env: []
      words: [{<apropos>} {(DQ <_r>)}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <sed>
      more_env: []
      words: [{<sed>} {<-n>} {(SQ <'s#\\(.*\\)_r .*#\\1#p'>)}]
      redirects: []
      do_fork: T
    )
    (command.Simple blame_tok:<uniq> more_env:[] words:[{<uniq>}] 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 '['>}
                        {(DQ ($ Id.VSub_Pound '#'))}
                        {<Id.KW_Bang '!'> <Id.Lit_Equals '='>}
                        {(DQ <0>)}
                        {<Id.Lit_RBracket ']'>}
                      ]
                      redirects: []
                      do_fork: T
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (command.Simple
              blame_tok: <grep>
              more_env: [(EnvPair left:<Id.Lit_VarLike 'LANG='> name:LANG val:{<C>})]
              words: [
                {<grep>}
                {<-F>}
                {<-f->}
                {<-w>}
                {<-n>}
                {<--color> <Id.Lit_Equals '='> (DQ <auto>)}
                {(DQ ($ Id.VSub_At '@'))}
              ]
              redirects: []
              do_fork: T
            )
          ]
          spids: [74 92]
        )
      ]
      else_kw: <Id.KW_Else else>
      else_action: [
        (command.Simple blame_tok:<cat> more_env:[] words:[{<cat>}] redirects:[] do_fork:T)
      ]
      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
  ]
  ops: [<Id.Op_Pipe _> <Id.Op_Pipe _> <Id.Op_Pipe _>]
)