So I was messing around with `yes`, and after running `yes --help me` it output this:
> yes: unrecognized option '--help' > Try 'yes --help' for more information. After a bit of more testing of this, I found the same reaction from `whoami`. I believe this might be because both `yes` and `whoami` only ever accept one option -- that being `--help` or `--version`, and it says that it doesn't know what `--version` is when run with an extra operand as well. However, `true` or `false` doesn't give a textual error, but they completely ignore the option: > $ /usr/bin/true --version > true (GNU coreutils) 8.30 > Copyright (C) 2018 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>. > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. > > Written by Jim Meyering. > $ /usr/bin/true --version asd > $ echo $? > 0 Suggested possible fixes: 1. A more general error message, e.g., `yes` only accepts one option or none. 2. Ignore the stuff that follows the option, making `yes --help me` act the same as `yes --help`, which kind of matches with other shell commands in that they print help, ignore the rest of arguments and exit. 3. Ignore the option: `yes --help me` would use "--help me" as the string to repeat. The third one isn't really a good one, but it exists as an idea so I'm marking it down. ---- Uko Kokņevičs (Uko Koknevics)
