@napsy oooh I only got 22..
It seemed like I was stuck in the low twenties, but in the end, I managed to cajole 63 commands from memory.
(My brain kept coming up with things like rg (ripgrep), bat (cat-alternative with highlighting), neovim, etc. since those are pretty much standard Linux commands to me by now. But I excluded those from the count.)
@skanman think of the commands that are available on most Linux distributions ... so the standard set of the commands.