(command.CommandList
  children: [
    (command.CommandList
      children: [
        (command.Sentence
          child: 
            (C {<.>} 
              {
                (DQ 
                  (braced_var_sub
                    token: <Id.VSub_Name srcdir>
                    suffix_op: (suffix_op.Unary op_id:Id.VTest_Equals arg_word:{<.>})
                  ) <'/tests/init.sh'>
                )
              }
            )
          terminator: <Id.Op_Semi _>
        )
        (C {<path_prepend_>} {<'./src'>})
      ]
    )
    (C {<print_ver_>} {<nproc>})
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:all)
          op: assign_op.Equal
          rhs: {(command_sub left_token:<Id.Left_DollarParen '$('> child:(C {<nproc>} {<--all>}))}
          spids: [65]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:available)
          op: assign_op.Equal
          rhs: 
            {
              (command_sub
                left_token: <Id.Left_DollarParen '$('>
                child: 
                  (command.Simple
                    words: [{<nproc>}]
                    more_env: [(env_pair name:OMP_NUM_THREADS val:(word.Empty) spids:[74])]
                    do_fork: T
                  )
              )
            }
          spids: [72]
        )
      ]
    )
    (command.AndOr
      ops: [Id.Op_DPipe]
      children: [
        (C {<test>} {($ Id.VSub_DollarName '$available')} {<-le>} {($ Id.VSub_DollarName '$all')})
        (command.ShAssignment
          pairs: [
            (assign_pair
              lhs: (sh_lhs_expr.Name name:fail)
              op: assign_op.Equal
              rhs: {<1>}
              spids: [90]
            )
          ]
        )
      ]
    )
    (C {<Exit>} {($ Id.VSub_DollarName '$fail')})
  ]
)