(CommandList
  children: [
    (Sentence
      child: 
        (C {(.)} 
          {
            (DQ 
              (BracedVarSub
                token: <VSub_Name srcdir>
                suffix_op: (StringUnary op_id:VTest_Equals arg_word:{(.)})
                spids: [50 54]
              ) (/tests/init.sh)
            )
          }
        )
      terminator: <Op_Semi ';'>
    )
    (C {(path_prepend_)} {(./src)})
    (C {(print_ver_)} {(md5sum)})
    (Subshell
      child: 
        (AndOr
          ops: [Op_DAmp Op_DAmp]
          children: [
            (C {(mkdir)} {(tmp)})
            (C {(cd)} {(tmp)})
            (Pipeline children:[(C {(seq)} {(500)}) (C {(xargs)} {(touch)})] negated:F)
          ]
        )
      spids: [68 90]
    )
    (AndOr
      ops: [Op_DAmp]
      children: [
        (Pipeline
          children: [
            (Subshell
              child: 
                (Pipeline
                  children: [
                    (C {(find)} {(tmp)} {(tmp)} {(tmp)} {(-type)} {(f)})
                    (C {(xargs)} {(-n500)} {(-P2)} {(md5sum)})
                  ]
                  negated: F
                )
              spids: [102 124]
            )
            (C {(sed)} {(-n)} {(SQ <'/[0-9a-f]\\{32\\}  /!p'>)})
            (SimpleCommand
              words: [{(grep)} {(.)}]
              redirects: [(Redir op_id:Redir_Great fd:16777215 arg_word:{(/dev/null)} spids:[142])]
            )
          ]
          negated: F
        )
        (Assignment
          keyword: Assign_None
          pairs: [(assign_pair lhs:(LhsName name:fail) op:Equal rhs:{(1)} spids:[148])]
          spids: [148]
        )
      ]
    )
    (C {(Exit)} {($ VSub_Name '$fail')})
  ]
)