(command.CommandList
  children: [
    (C {<set>} {<-o>} {<nounset>})
    (C {<set>} {<-o>} {<pipefail>})
    (C {<set>} {<-o>} {<errexit>})
    (C {<readonly>} 
      {<Id.Lit_VarLike 'FILES='> 
        (sh_array_literal
          left: <Id.Op_LParen _>
          words: [
            {<'../'> <Id.Lit_Star '*'> <.sh>}
            {<'../'> <Id.Lit_Star '*'> <'/'> <Id.Lit_Star '*'> <.sh>}
            {<'../'> <Id.Lit_Star '*'> <.py>}
            {<'../'> <Id.Lit_Star '*'> <'/'> <Id.Lit_Star '*'> <.py>}
            {<'../'> <Id.Lit_Star '*'> <'/'> <Id.Lit_Star '*'> <'/'> <Id.Lit_Star '*'> <.py>}
          ]
        )
      }
    )
    (command.ShFunction
      name: test-awk
      body: 
        (BraceGroup
          children: [
            (command.ForEach
              iter_name: awk
              iter_words: [
                {<gawk>}
                {<mawk>}
                {(word_part.TildeSub token:<Id.Lit_TildeLike '~'>) <'/git/bwk/bwk'>}
              ]
              do_arg_iter: F
              body: 
                (command.DoGroup
                  children: [
                    (C {<echo>} {<--->})
                    (C {<echo>} {($ Id.VSub_DollarName '$awk')})
                    (C {<echo>} {<--->})
                    (command.TimeBlock
                      pipeline: 
                        (command.ForEach
                          iter_name: i
                          iter_words: [
                            (word.BracedTree
                              parts: [(word_part.BracedRange kind:Id.Range_Int start:1 end:10 step:1)]
                            )
                          ]
                          do_arg_iter: F
                          body: 
                            (command.DoGroup
                              children: [
                                (C {($ Id.VSub_DollarName '$awk')} 
                                  {
                                    (SQ <'\n'> <'      { \n'> <'        line = tolower($0)\n'> 
                                      <'        num_lines += 1\n'> <'\n'> <'        # NOTE: gawk has length(); mawk does not\n'> <'        if (!(line in unique)) {\n'> 
                                      <'          num_unique += 1\n'> <'        }\n'> <'        unique[line] += 1\n'> <'      }\n'> <'      END {\n'> 
                                      <'        print "unique lines: " num_unique\n'> <'        print "total lines: " num_lines\n'> <'      }\n'> <'      '>
                                    )
                                  } {(DQ (braced_var_sub token:<Id.VSub_Name FILES> bracket_op:(bracket_op.WholeArray op_id:Id.Lit_At)))}
                                )
                              ]
                            )
                        )
                    )
                  ]
                )
            )
          ]
        )
    )
    (command.ShFunction
      name: test-python
      body: 
        (BraceGroup
          children: [
            (command.TimeBlock
              pipeline: 
                (command.ForEach
                  iter_name: i
                  iter_words: [
                    (word.BracedTree
                      parts: [(word_part.BracedRange kind:Id.Range_Int start:1 end:10 step:1)]
                    )
                  ]
                  do_arg_iter: F
                  body: 
                    (command.DoGroup
                      children: [
                        (C {<python>} {<-S>} {<-c>} 
                          {
                            (SQ <'\n'> <'import collections\n'> <'import sys\n'> <'\n'> 
                              <'num_lines = 0\n'> <'num_unique = 0\n'> <'unique = collections.defaultdict(int)\n'> <'\n'> <'for path in sys.argv[1:]:\n'> 
                              <'  with open(path) as f:\n'> <'    for line in f:\n'> <'      line = line.lower()\n'> <'      num_lines += 1\n'> <'\n'> 
                              <'      if line not in unique:\n'> <'        num_unique += 1\n'> <'      unique[line] += 1\n'> <'\n'> 
                              <'print "unique lines: ", num_unique\n'> <'print "total lines: ", num_lines\n'> <'      '>
                            )
                          } {(DQ (braced_var_sub token:<Id.VSub_Name FILES> bracket_op:(bracket_op.WholeArray op_id:Id.Lit_At)))}
                        )
                      ]
                    )
                )
            )
          ]
        )
    )
    (command.ShFunction
      name: test-wc
      body: 
        (BraceGroup
          children: [
            (command.TimeBlock
              pipeline: 
                (command.ForEach
                  iter_name: i
                  iter_words: [
                    (word.BracedTree
                      parts: [(word_part.BracedRange kind:Id.Range_Int start:1 end:10 step:1)]
                    )
                  ]
                  do_arg_iter: F
                  body: 
                    (command.DoGroup
                      children: [
                        (command.Pipeline
                          children: [
                            (C {<cat>} 
                              {
                                (DQ 
                                  (braced_var_sub
                                    token: <Id.VSub_Name FILES>
                                    bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                                  )
                                )
                              }
                            )
                            (C {<wc>} {<-c>})
                          ]
                          negated: F
                        )
                      ]
                    )
                )
            )
          ]
        )
    )
    (command.ShFunction
      name: files
      body: 
        (BraceGroup
          children: [
            (C {<echo>} 
              {
                (DQ 
                  (braced_var_sub
                    token: <Id.VSub_Name FILES>
                    bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                  )
                )
              }
            )
            (C {<echo>} 
              {
                (DQ 
                  (braced_var_sub
                    token: <Id.VSub_Name FILES>
                    prefix_op: (Id.VSub_Pound)
                    bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                  ) <' files'>
                )
              }
            )
          ]
        )
    )
    (C {(DQ ($ Id.VSub_At '$@'))})
  ]
)