> Interestingly, -h does not mention -h itself or --help, so the only way to know that --help exists, is someone else telling you, you will never find on your o

> Interestingly, -h does not mention -h itself or --help, so the only way to know that --help exists, is someone else telling you, you will never find on your own. I've found the --help option on probably a dozen commands without ever being specifically told that --help was a valid option. If you have trouble discovering it you might want to look inward, at least for that particular well-known option.