(CommandList
  children: [
    (If
      arms: [
        (if_arm
          cond: [(C {(Lit_Other '[')} {($ VSub_Pound '$#')} {(-lt)} {(2)} {(Lit_Other ']')})]
          action: [
            (C {(echo)} {(DQ ('Usage: headers_install.sh OUTDIR SRCDIR [FILES...]'))})
            (C {(echo)})
            (C {(echo)} {(DQ ('Prepares kernel header files for use by user space, by removing'))})
            (C {(echo)} {(DQ ('all compiler.h definitions and #includes, removing any'))})
            (C {(echo)} {(DQ ('#ifdef __KERNEL__ sections, and putting __underscores__ around'))})
            (C {(echo)} {(DQ ('asm/inline/volatile keywords.'))})
            (C {(echo)})
            (C {(echo)} {(DQ ('OUTDIR: directory to write each userspace header FILE to.'))})
            (C {(echo)} {(DQ ('SRCDIR: source directory where files are picked.'))})
            (C {(echo)} {(DQ ('FILES:  list of header files to operate on.'))})
            (ControlFlow token:<ControlFlow_Exit exit> arg_word:{(1)})
          ]
          spids: [16777215 16]
        )
      ]
      spids: [16777215 86]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:OUTDIR)
          op: Equal
          rhs: {(DQ ($ VSub_Number '$1'))}
          spids: [93]
        )
      ]
      spids: [93]
    )
    (C {(shift)})
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:SRCDIR)
          op: Equal
          rhs: {(DQ ($ VSub_Number '$1'))}
          spids: [100]
        )
      ]
      spids: [100]
    )
    (C {(shift)})
    (Assignment
      keyword: Assign_None
      pairs: [(assign_pair lhs:(LhsName name:FILE) op:Equal rhs:{(EmptyPart)} spids:[112])]
      spids: [112]
    )
    (C {(trap)} {(SQ <'rm -f "$OUTDIR/$FILE" "$OUTDIR/$FILE.sed"'>)} {(EXIT)})
    (ForEach
      iter_name: i
      iter_words: [{(DQ ($ VSub_At '$@'))}]
      do_arg_iter: F
      body: 
        (DoGroup
          children: [
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:FILE)
                  op: Equal
                  rhs: 
                    {
                      (DQ 
                        (CommandSubPart
                          command_list: 
                            (CommandList
                              children: [(C {(basename)} {(DQ ($ VSub_Name '$i'))})]
                            )
                          left_token: <Left_CommandSub '$('>
                          spids: [137 143]
                        )
                      )
                    }
                  spids: [135]
                )
              ]
              spids: [135]
            )
            (AndOr
              ops: [Op_DPipe]
              children: [
                (SimpleCommand
                  words: [
                    {(sed)}
                    {(-r)}
                    {(-e)}
                    {(SQ <'s/([ \\t(])(__user|__force|__iomem)[ \\t]/\\1/g'>)}
                    {(-e)}
                    {(SQ <'s/__attribute_const__([ \\t]|$)/\\1/g'>)}
                    {(-e)}
                    {(SQ <'s@^#include <linux/compiler.h>@@'>)}
                    {(-e)}
                    {
                      (SQ 
                        <
's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\\1__attribute__((packed))\\2/g'
                        >
                      )
                    }
                    {(-e)}
                    {(SQ <'s/(^|[ \\t(])(inline|asm|volatile)([ \\t(]|$)/\\1__\\2__\\3/g'>)}
                    {(-e)}
                    {(SQ <'s@#(ifndef|define|endif[ \\t]*/[*])[ \\t]*_UAPI@#\\1 @'>)}
                    {(DQ ($ VSub_Name '$SRCDIR') (/) ($ VSub_Name '$i'))}
                  ]
                  redirects: [
                    (Redir
                      op: <Redir_Great '>'>
                      fd: 16777215
                      arg_word: {(DQ ($ VSub_Name '$OUTDIR') (/) ($ VSub_Name '$FILE') (.sed))}
                    )
                  ]
                )
                (ControlFlow token:<ControlFlow_Exit exit> arg_word:{(1)})
              ]
            )
            (SimpleCommand
              words: [
                {(scripts/unifdef)}
                {(-U__KERNEL__)}
                {(-D__EXPORTED_HEADERS__)}
                {(DQ ($ VSub_Name '$OUTDIR') (/) ($ VSub_Name '$FILE') (.sed))}
              ]
              redirects: [
                (Redir
                  op: <Redir_Great '>'>
                  fd: 16777215
                  arg_word: {(DQ ($ VSub_Name '$OUTDIR') (/) ($ VSub_Name '$FILE'))}
                )
              ]
            )
            (AndOr
              ops: [Op_DAmp]
              children: [
                (C {(Lit_Other '[')} {($ VSub_QMark '$?')} {(-gt)} {(1)} {(Lit_Other ']')})
                (ControlFlow token:<ControlFlow_Exit exit> arg_word:{(1)})
              ]
            )
            (C {(rm)} {(-f)} {(DQ ($ VSub_Name '$OUTDIR') (/) ($ VSub_Name '$FILE') (.sed))})
          ]
          spids: [132 275]
        )
      spids: [127 16777215]
    )
    (C {(trap)} {(-)} {(EXIT)})
  ]
)