"File1 can be 'stdout' or 'stderr' to compare the script's stdout or stderr buffer.",
			},
		},
		func(s *State, args ...string) (WaitFunc, error) {
			return nil, doCompare(s, true, args...)
		})
}

func doCompare(s *State, env bool, args ...string) error {
	quiet := false
	if len(args) > 0 && args[0] == "-q" {
		quiet = true
		args = args[1:]
	}
	if len(args) != 2 {
		return ErrUsage