(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'error='> name:error)
          op: assign_op.Equal
          rhs: {<no>}
          spids: [77]
        )
      ]
      redirects: []
    )
    (command.WhileUntil
      keyword: <Id.KW_While while>
      cond: (condition.Shell commands:[(C {<read>} {<src>} {<dest>})])
      body: 
        (command.DoGroup
          children: [
            (command.AndOr
              ops: [Id.Op_DAmp]
              children: [
                (C {<Id.Lit_LBracket '['>} {(DQ ($ Id.VSub_DollarName src))} {<Id.Lit_Equals '='>} 
                  {<'/dev/null'>} {<Id.Lit_RBracket ']'>}
                )
                (command.ControlFlow token:<Id.ControlFlow_Continue continue>)
              ]
            )
            (C {<echo>} {(DQ <'Modifying '> ($ Id.VSub_DollarName dest))})
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (C {<Id.Lit_LBracket '['>} {<-n>} 
                              {(DQ ($ Id.VSub_DollarName PKG_INSTALL_ROOT))} {<-a>} {(DQ ($ Id.VSub_DollarName PKG_INSTALL_ROOT))} {<Id.KW_Bang '!'> <Id.Lit_Equals '='>} {(DQ <'/'>)} 
                              {<Id.Lit_RBracket ']'>}
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: 
                            (sh_lhs_expr.Name
                              left: <Id.Lit_VarLike 'client_dest='>
                              name: client_dest
                            )
                          op: assign_op.Equal
                          rhs: 
                            {
                              (command_sub
                                left_token: <Id.Left_Backtick '`'>
                                child: 
                                  (command.Pipeline
                                    children: [
                                      (C {<echo>} {($ Id.VSub_DollarName dest)})
                                      (C {<'/usr/bin/nawk'>} {<-v>} 
                                        {<Id.Lit_VarLike 'rootdir='> 
                                          (DQ ($ Id.VSub_DollarName PKG_INSTALL_ROOT))
                                        } {(SQ <'{\n'> <'\t\t\t\t{ print substr($0, length(rootdir)+1)} }'>)}
                                      )
                                    ]
                                    negated: F
                                    stderr_indices: []
                                  )
                                right: <Id.Backtick_Right '`'>
                              )
                            }
                          spids: [156]
                        )
                      ]
                      redirects: []
                    )
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'savepath='> name:savepath)
                          op: assign_op.Equal
                          rhs: 
                            {($ Id.VSub_DollarName PKGSAV) <'/build'> (${ Id.VSub_Name client_dest)}
                          spids: [188]
                        )
                      ]
                      redirects: []
                    )
                  ]
                  spids: [127 153]
                )
              ]
              else_action: [
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'savepath='> name:savepath)
                      op: assign_op.Equal
                      rhs: {($ Id.VSub_DollarName PKGSAV) <'/build'> (${ Id.VSub_Name dest)}
                      spids: [199]
                    )
                  ]
                  redirects: []
                )
              ]
              redirects: []
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'dirname='> name:dirname)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (command_sub
                        left_token: <Id.Left_Backtick '`'>
                        child: (C {<dirname>} {($ Id.VSub_DollarName savepath)})
                        right: <Id.Backtick_Right '`'>
                      )
                    }
                  spids: [211]
                )
              ]
              redirects: []
            )
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (C {<Id.Lit_LBracket '['>} {($ Id.VSub_QMark '?')} {<-ne>} {<0>} 
                          {<Id.Lit_RBracket ']'>}
                        )
                      ]
                    )
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'error='> name:error)
                          op: assign_op.Equal
                          rhs: {<yes>}
                          spids: [237]
                        )
                      ]
                      redirects: []
                    )
                    (command.ControlFlow token:<Id.ControlFlow_Continue continue>)
                  ]
                  spids: [221 234]
                )
              ]
              else_action: []
              redirects: []
            )
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (C {<Id.Lit_LBracket '['>} {<Id.KW_Bang '!'>} {<-d>} 
                          {($ Id.VSub_DollarName dirname)} {<Id.Lit_RBracket ']'>}
                        )
                      ]
                    )
                  action: [(C {<mkdir>} {<-p>} {($ Id.VSub_DollarName dirname)})]
                  spids: [248 261]
                )
              ]
              else_action: []
              redirects: []
            )
            (command.AndOr
              ops: [Id.Op_DAmp]
              children: [
                (C {<cp>} {($ Id.VSub_DollarName src)} {($ Id.VSub_DollarName savepath)})
                (C {<chmod>} {<500>} {($ Id.VSub_DollarName savepath)})
              ]
            )
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (C {<Id.Lit_LBracket '['>} {($ Id.VSub_QMark '?')} {<-ne>} {<0>} 
                          {<Id.Lit_RBracket ']'>}
                        )
                      ]
                    )
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'error='> name:error)
                          op: assign_op.Equal
                          rhs: {<yes>}
                          spids: [311]
                        )
                      ]
                      redirects: []
                    )
                    (command.ControlFlow token:<Id.ControlFlow_Continue continue>)
                  ]
                  spids: [295 308]
                )
              ]
              else_action: []
              redirects: []
            )
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Simple
                          words: [{($ Id.VSub_DollarName savepath)} {<install>}]
                          redirects: [
                            (redir
                              op: <Id.Redir_Great '>'>
                              loc: (redir_loc.Fd fd:1)
                              arg: {<'/tmp/'> ($ Id.VSub_Dollar '$') <build>}
                            )
                          ]
                          more_env: []
                          do_fork: T
                        )
                      ]
                    )
                  action: [
                    (command.If
                      arms: [
                        (if_arm
                          cond: 
                            (condition.Shell
                              commands: [
                                (C {<Id.Lit_LBracket '['>} {<-s>} 
                                  {<'/tmp/'> ($ Id.VSub_Dollar '$') <build>} {<Id.Lit_RBracket ']'>}
                                )
                              ]
                            )
                          action: [
                            (command.AndOr
                              ops: [Id.Op_DPipe]
                              children: [
                                (C {<cp>} {<'/tmp/'> ($ Id.VSub_Dollar '$') <build>} 
                                  {($ Id.VSub_DollarName dest)}
                                )
                                (command.ShAssignment
                                  pairs: [
                                    (assign_pair
                                      lhs: 
                                        (sh_lhs_expr.Name
                                          left: <Id.Lit_VarLike 'error='>
                                          name: error
                                        )
                                      op: assign_op.Equal
                                      rhs: {<yes>}
                                      spids: [364]
                                    )
                                  ]
                                  redirects: []
                                )
                              ]
                            )
                          ]
                          spids: [338 351]
                        )
                      ]
                      else_action: []
                      redirects: []
                    )
                  ]
                  spids: [322 335]
                )
              ]
              else_action: [
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'error='> name:error)
                      op: assign_op.Equal
                      rhs: {<yes>}
                      spids: [374]
                    )
                  ]
                  redirects: []
                )
              ]
              redirects: []
            )
            (C {<rm>} {<-f>} {<'/tmp/'> ($ Id.VSub_Dollar '$') <build>})
          ]
        )
      redirects: []
    )
    (command.AndOr
      ops: [Id.Op_DAmp]
      children: [
        (C {<Id.Lit_LBracket '['>} {(DQ ($ Id.VSub_DollarName error))} {<Id.Lit_Equals '='>} {<yes>} 
          {<Id.Lit_RBracket ']'>}
        )
        (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<2>})
      ]
    )
    (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<0>})
  ]
)