(command.CommandList children: [ (C {<echo>} {(SQ <'--- softlimit insists on an argument'>)}) (command.CommandList children: [ (command.Sentence child:(C {<softlimit>}) terminator:<Id.Op_Semi _>) (C {<echo>} {($ Id.VSub_QMark '$?')}) ] ) (C {<echo>} {(SQ <'--- softlimit complains if it cannot run program'>)}) (command.CommandList children: [ (command.Sentence child: (C {<softlimit>} {<'./nonexistent'>}) terminator: <Id.Op_Semi _> ) (C {<echo>} {($ Id.VSub_QMark '$?')}) ] ) (C {<echo>} {(SQ <'--- softlimit -p0 still allows exec'>)}) (command.CommandList children: [ (command.Sentence child: (C {<softlimit>} {<-p0>} {<echo>} {<'./nonexistent'>}) terminator: <Id.Op_Semi _> ) (C {<echo>} {($ Id.VSub_QMark '$?')}) ] ) ] )