I just keep cheatsheets handy. For new scenarios, if I find they aren't already on the sheet, I add them. The best command line tools have good documentation you can find with a command like "help" or the "-h" flag. I am slightly annoyed there isn't a convention for this though. Perhaps it should be made into a RFC standard.
Cheat sheets are not form of discoverability. People generally want to use software and learn-while-using. By searching beforehand for a cheatsheet or reading a man page you are already studying how to use the software before actually using the software.
Compare that to most GUI apps where you can just open and use and learn as you go.
I just want to achieve an outcome. An argument could also be made that GUIs are a pita because you have to spend too much time discovering when you could just read the manual and do the task.
