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            {
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                      negated: F
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            (command.ShAssignment
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                      redirects: []
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                    (command.ShAssignment
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                    (command.ShAssignment
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                        (assign_pair
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                            {
                              (DQ 
                                (command_sub
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                                  child: (C {<sysctl>} {<-n>} {<hw.model>})
                                  right: <Id.Backtick_Right '`'>
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                          spids: [204]
                        )
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                      redirects: []
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                    (command.ShAssignment
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                          spids: [221]
                        )
                      ]
                      redirects: []
                    )
                  ]
                  spids: [167 174 226 -1]
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                (case_arm
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                  action: [
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                          spids: [237]
                        )
                      ]
                      redirects: []
                    )
                    (command.ShAssignment
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                          op: assign_op.Equal
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                        )
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                    (command.ShAssignment
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                    (command.ShAssignment
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                        )
                      ]
                      redirects: []
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                    (command.Case
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                                  negated: F
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                              right: <Id.Backtick_Right '`'>
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                                    (C {<sed>} {<-n>} {(SQ <'s/^Processor type: \\(.*\\) (.*)$/\\1/p'>)})
                                    (C {<tr>} {<'/'> <Id.Lit_Colon ':'>} {<..>})
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                                  negated: F
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                                    (C {<sed>} {<-n>} {(SQ <'s/^Processor type: .* (\\(.*\\))$/\\1/p'>)})
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                      lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'chip='> name:chip)
                      op: assign_op.Equal
                      rhs: {(DQ )}
                      spids: [723]
                    )
                  ]
                  redirects: []
                )
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'kern='> name:kern)
                      op: assign_op.Equal
                      rhs: {(DQ )}
                      spids: [728]
                    )
                  ]
                  redirects: []
                )
              ]
              spids: [703 704 733 -1]
            )
          ]
          redirects: []
        )
        (C {<rm>} {<-f>} {<trycpp.o>} {<trycpp>})
      ]
      redirects: []
    )
    (command.Case
      to_match: {(DQ ($ Id.VSub_DollarName chip))}
      arms: [
        (case_arm
          pat_list: [{<80486>}]
          action: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'chip='> name:chip)
                  op: assign_op.Equal
                  rhs: {<i486>}
                  spids: [766]
                )
              ]
              redirects: []
            )
          ]
          spids: [758 759 770 -1]
        )
        (case_arm
          pat_list: [{<i486DX>}]
          action: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'chip='> name:chip)
                  op: assign_op.Equal
                  rhs: {<i486-dx>}
                  spids: [780]
                )
              ]
              redirects: []
            )
          ]
          spids: [772 773 784 -1]
        )
        (case_arm
          pat_list: [{<i486.DX2>}]
          action: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'chip='> name:chip)
                  op: assign_op.Equal
                  rhs: {<i486-dx2>}
                  spids: [794]
                )
              ]
              redirects: []
            )
          ]
          spids: [786 787 798 -1]
        )
        (case_arm
          pat_list: [{<Intel.586>}]
          action: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'chip='> name:chip)
                  op: assign_op.Equal
                  rhs: {<pentium>}
                  spids: [808]
                )
              ]
              redirects: []
            )
          ]
          spids: [800 801 812 -1]
        )
        (case_arm
          pat_list: [{<i586>}]
          action: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'chip='> name:chip)
                  op: assign_op.Equal
                  rhs: {<pentium>}
                  spids: [822]
                )
              ]
              redirects: []
            )
          ]
          spids: [814 815 826 -1]
        )
        (case_arm
          pat_list: [{<i686>}]
          action: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'chip='> name:chip)
                  op: assign_op.Equal
                  rhs: {<ppro>}
                  spids: [836]
                )
              ]
              redirects: []
            )
          ]
          spids: [828 829 -1 839]
        )
      ]
      redirects: []
    )
    (command.If
      arms: [
        (if_arm
          cond: (condition.Shell commands:[(C {<gcc>} {<-c>} {<x86cpuid.c>})])
          action: [
            (command.If
              arms: [
                (if_arm
                  cond: (condition.Shell commands:[(C {<gcc>} {<-o>} {<x86cpuid>} {<x86cpuid.o>})])
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'x86cpuid='> name:x86cpuid)
                          op: assign_op.Equal
                          rhs: 
                            {
                              (DQ 
                                (command_sub
                                  left_token: <Id.Left_Backtick '`'>
                                  child: 
                                    (command.Pipeline
                                      children: [
                                        (C {<'./x86cpuid'>})
                                        (C {<tr>} {<'/'> <Id.Lit_Colon ':'>} {<..>})
                                      ]
                                      negated: F
                                      stderr_indices: []
                                    )
                                  right: <Id.Backtick_Right '`'>
                                )
                              )
                            }
                          spids: [867]
                        )
                      ]
                      redirects: []
                    )
                    (command.Case
                      to_match: {(DQ ($ Id.VSub_DollarName x86cpuid))}
                      arms: [
                        (case_arm
                          pat_list: [{<Id.Lit_QMark '?'> <Id.Lit_Star '*'>}]
                          action: [
                            (command.ShAssignment
                              pairs: [
                                (assign_pair
                                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'chip='> name:chip)
                                  op: assign_op.Equal
                                  rhs: {(DQ ($ Id.VSub_DollarName x86cpuid))}
                                  spids: [900]
                                )
                              ]
                              redirects: []
                            )
                          ]
                          spids: [895 897 906 -1]
                        )
                      ]
                      redirects: []
                    )
                  ]
                  spids: [853 864]
                )
              ]
              else_action: []
              redirects: []
            )
          ]
          spids: [842 850]
        )
      ]
      else_action: []
      redirects: []
    )
    (C {<rm>} {<-f>} {<x86cpuid>} {<x86cpuid.o>})
    (command.Pipeline
      children: [
        (C {<echo>} 
          {
            (DQ ($ Id.VSub_DollarName oper) <'-:'> ($ Id.VSub_DollarName arch) <'-:'> 
              ($ Id.VSub_DollarName syst) <'-:'> ($ Id.VSub_DollarName chip) <'-:'> ($ Id.VSub_DollarName kern) <->
            )
          }
        )
        (C {<tr>} {(SQ <' [A-Z]'>)} {(SQ <'.[a-z]'>)})
      ]
      negated: F
      stderr_indices: []
    )
  ]
)