(command.CommandList
  children: [
    (command.If
      arms: [
        (if_arm
          cond: [
            (command.Sentence
              child: 
                (command.AndOr
                  ops: [Id.Op_DPipe]
                  children: [
                    (C {<test>} {($ Id.VSub_Pound '$#')} {<Id.KW_Bang '!'> <Id.Lit_Equals '='>} {<1>})
                    (C {<test>} 
                      {
                        (DQ 
                          (braced_var_sub
                            token: <Id.VSub_Number 1>
                            suffix_op: 
                              (suffix_op.PatSub
                                pat: {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\/'>)}
                                replace: (word.Empty)
                                replace_mode: Id.Undefined_Tok
                              )
                          )
                        )
                      } {<Id.KW_Bang '!'> <Id.Lit_Equals '='>} {(DQ ($ Id.VSub_Number '$1'))}
                    )
                  ]
                )
              terminator: <Id.Op_Semi _>
            )
          ]
          action: [
            (command.Simple
              words: [
                {<echo>}
                {
                  (DQ <'Usage: '> ($ Id.VSub_Number '$0') 
                    <': {python2.7-static|stackless2.7-static|stacklessco2.7-static}'>
                  )
                }
              ]
              redirects: [(redir.Redir op:<Id.Redir_GreatAnd '>&'> fd:-1 arg_word:{<2>})]
            )
            (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<1>})
          ]
          spids: [30 62]
        )
      ]
    )
    (command.If
      arms: [
        (if_arm
          cond: [
            (command.Sentence
              child: 
                (C {<test>} 
                  {
                    (DQ 
                      (command_sub
                        left_token: <Id.Left_Backtick '`'>
                        command_list: (command.CommandList children:[(C {<uname>})])
                      )
                    )
                  } {<Id.Lit_Equals '='>} {<Darwin>}
                )
              terminator: <Id.Op_Semi _>
            )
          ]
          action: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:URL)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (DQ 
                        <
'https://raw.githubusercontent.com/pts/staticpython/master/release.darwin/'
                        > ($ Id.VSub_Number '$1')
                      )
                    }
                  spids: [103]
                )
              ]
            )
          ]
          spids: [83 100]
        )
      ]
      else_action: [
        (command.ShAssignment
          pairs: [
            (assign_pair
              lhs: (sh_lhs_expr.Name name:URL)
              op: assign_op.Equal
              rhs: 
                {
                  (DQ <'https://raw.githubusercontent.com/pts/staticpython/master/release/'> 
                    ($ Id.VSub_Number '$1')
                  )
                }
              spids: [112]
            )
          ]
        )
      ]
    )
    (C {<echo>} {(DQ <'info: downloading: '> ($ Id.VSub_DollarName '$URL'))})
    (command.If
      arms: [
        (if_arm
          cond: [
            (command.Sentence
              child: 
                (command.Simple
                  words: [{<type>} {<-p>} {<curl>}]
                  redirects: [
                    (redir.Redir
                      op: <Id.Redir_Great '>'>
                      fd: -1
                      arg_word: {</dev/null>}
                    )
                    (redir.Redir op:<Id.Redir_GreatAnd '2>&'> fd:2 arg_word:{<1>})
                  ]
                )
              terminator: <Id.Op_Semi _>
            )
          ]
          action: [
            (command.AndOr
              ops: [Id.Op_DPipe]
              children: [
                (C {<curl>} {<-o>} {(DQ ($ Id.VSub_Number '$1') <.download>)} 
                  {(DQ ($ Id.VSub_DollarName '$URL'))}
                )
                (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<2>})
              ]
            )
          ]
          spids: [127 142]
        )
      ]
      else_action: [
        (command.AndOr
          ops: [Id.Op_DPipe]
          children: [
            (C {<wget>} {<-O>} {(DQ ($ Id.VSub_Number '$1') <.download>)} 
              {(DQ ($ Id.VSub_DollarName '$URL'))}
            )
            (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<2>})
          ]
        )
      ]
    )
    (command.AndOr
      ops: [Id.Op_DPipe]
      children: [
        (C {<chmod>} {<Id.Lit_Other '+'> <x>} {(DQ ($ Id.VSub_Number '$1') <.download>)})
        (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<2>})
      ]
    )
    (command.AndOr
      ops: [Id.Op_DPipe]
      children: [
        (C {<mv>} {(DQ ($ Id.VSub_Number '$1') <.download>)} {(DQ ($ Id.VSub_Number '$1'))})
        (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<2>})
      ]
    )
    (C {<echo>} {(DQ <'info: download OK, run with: ./'> ($ Id.VSub_Number '$1'))})
  ]
)