This is incredible and makes me think a website like this could and should exist, containing an interface to as many unix tools as possible.<p>Yes, one could "RTFM" as one commenter mentioned, but if you're just a casual CLI user, this sort of interface seems incredibly handy. "I know I want to use cURL but I don't know what arguments I need to do X and Y". Use the interface to piece together a whole command, with nice instructions for every little flag and argument available so you know what you're doing.<p>It's kind of like those visual regex builders. They're amazing!