(CommandList
  children: [
    (C {(_Dbg_help_add)} {(pwd)} {(SQ <"**pwd**\n"> <"\n"> <"Show working directory.">)})
    (FuncDef
      name: _Dbg_do_pwd
      body: 
        (BraceGroup
          children: [
            (Sentence child:(C {(typeset)} {(_Dbg_cwd)}) terminator:<Op_Semi ";">)
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_cwd)
                  op: Equal
                  rhs: 
                    {
                      (CommandSubPart
                        command_list: (CommandList children:[(C {(pwd)})])
                        left_token: <Left_CommandSub "$(">
                        spids: [86 88]
                      )
                    }
                  spids: [85]
                )
              ]
              spids: [85]
            )
            (AndOr
              children: [
                (DParen child:(ArithVarRef name:_Dbg_set_basename))
                (Assignment
                  keyword: Assign_None
                  pairs: [
                    (assign_pair
                      lhs: (LhsName name:_Dbg_cwd)
                      op: Equal
                      rhs: 
                        {
                          (BracedVarSub
                            token: <VSub_Name _Dbg_cwd>
                            suffix_op: (StringUnary op_id:VOp1_DPound arg_word:{("*") (Lit_Slash /)})
                            spids: [101 106]
                          )
                        }
                      spids: [100]
                    )
                  ]
                  spids: [100]
                )
              ]
              op_id: Op_DAmp
            )
            (C {(_Dbg_msg)} {(DQ ("Working directory ") (${ VSub_Name _Dbg_cwd) (.))})
          ]
          spids: [77]
        )
      spids: [73 76]
    )
  ]
)