(command.CommandList children: [ (command.Simple blame_tok: <_Dbg_help_add> more_env: [] words: [ {<_Dbg_help_add>} {<tty>} { (SQ <'tty\n'> <'\n'> <'Set the output device for debugger output. Use "&1" if you want debugger\n'> <'output to go to STDOUT.\n'> ) } ] redirects: [] do_fork: T ) (command.ShFunction name_tok: <_Dbg_do_tty> name: _Dbg_do_tty body: (BraceGroup left: <Id.Lit_LBrace '{'> children: [ (command.Simple blame_tok: <typeset> more_env: [] words: [{<typeset>} {<-i>} {<Id.Lit_VarLike 'rc='> <0>}] redirects: [] do_fork: T ) (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> cond: (condition.Shell commands: [ (command.Sentence child: (command.DParen left: <Id.Op_DLeftParen _> child: (arith_expr.Binary op_id: Id.Arith_Less left: {($ Id.VSub_Pound '#')} right: {<Id.Lit_Digits 1>} ) right: <Id.Op_DRightParen _> redirects: [] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.Simple blame_tok: <_Dbg_errmsg> more_env: [] words: [ {<_Dbg_errmsg>} {(DQ <'Argument required (terminal name for running target process).'>)} ] redirects: [] do_fork: T ) (command.ControlFlow keyword: <Id.ControlFlow_Return return> arg_word: {<1>} ) ] spids: [89 104] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) (command.Simple blame_tok: <typeset> more_env: [] words: [{<typeset>} {<Id.Lit_VarLike 'tty='> ($ Id.VSub_Number 1)}] redirects: [] do_fork: T ) (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> cond: (condition.Shell commands: [ (command.Sentence child: (command.Simple blame_tok: <_Dbg_check_tty> more_env: [] words: [{<_Dbg_check_tty>} {($ Id.VSub_DollarName tty)}] redirects: [] do_fork: T ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.ShAssignment left: <Id.Lit_VarLike '_Dbg_tty='> pairs: [ (AssignPair left: <Id.Lit_VarLike '_Dbg_tty='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike '_Dbg_tty='> name:_Dbg_tty) op: assign_op.Equal rhs: {($ Id.VSub_DollarName tty)} ) ] redirects: [] ) (command.ShAssignment left: <Id.Lit_VarLike '_Dbg_prompt_output='> pairs: [ (AssignPair left: <Id.Lit_VarLike '_Dbg_prompt_output='> lhs: (sh_lhs_expr.Name left: <Id.Lit_VarLike '_Dbg_prompt_output='> name: _Dbg_prompt_output ) op: assign_op.Equal rhs: {($ Id.VSub_DollarName _Dbg_tty)} ) ] redirects: [] ) (command.Simple blame_tok: <_Dbg_msg> more_env: [] words: [ {<_Dbg_msg>} {(DQ <'Debugger output set to go to '> ($ Id.VSub_DollarName _Dbg_tty))} ] redirects: [] do_fork: T ) ] spids: [128 136] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) (command.ControlFlow keyword:<Id.ControlFlow_Return return> arg_word:{<0>}) ] redirects: [] right: <Id.Lit_RBrace '}'> ) ) ] )