(command.CommandList children: [ (C {<set>} {<-e>}) (command.CommandList children: [ (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:common_objpfx) op: assign_op.Equal rhs: {($ Id.VSub_Number '$1')} spids: [54] ) ] ) terminator: <Id.Op_Semi _> ) (C {<shift>}) ] ) (command.CommandList children: [ (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:test_program_prefix) op: assign_op.Equal rhs: {($ Id.VSub_Number '$1')} spids: [60] ) ] ) terminator: <Id.Op_Semi _> ) (C {<shift>}) ] ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:status) op: assign_op.Equal rhs: {<0>} spids: [67] ) ] ) (command.AndOr ops: [Id.Op_DPipe] children: [ (command.Simple words: [ {(${ Id.VSub_Name test_program_prefix)} {(${ Id.VSub_Name common_objpfx) <'stdio-common/tst-unbputc'>} ] redirects: [ (redir op: <Id.Redir_Great '2>'> loc: (redir_loc.Fd fd:2) arg: {(${ Id.VSub_Name common_objpfx) <'stdio-common/tst-unbputc.out'>} ) ] do_fork: T ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:status) op: assign_op.Equal rhs: {<1>} spids: [93] ) ] ) ] ) (command.AndOr ops: [Id.Op_DPipe] children: [ (command.Subshell child: (command.Pipeline children: [ (C {<printf>} {<12>}) (C {<cmp>} {(${ Id.VSub_Name common_objpfx) <'stdio-common/tst-unbputc.out'>} {<->}) ] negated: F ) ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:status) op: assign_op.Equal rhs: {<1>} spids: [116] ) ] ) ] ) (command.ControlFlow token: <Id.ControlFlow_Exit exit> arg_word: {($ Id.VSub_DollarName '$status')} ) ] )