I maintain a more comprehensive list here: https://notes.billmill.org/computer_usage/mac_os/mac_os_comm...
But I don’t have uuidgen!
I'm fascinated by "sips" which has a full JavaScript interpreter built into it for rendering images using an entirely undocumented (as far as I can tell) Canvas-like API: https://til.simonwillison.net/macos/sips