Hehe I liked the 'lcoate' one on this page too, same idea. It might be super-useful to have a function that, if command not found and if there's an anagram of what you typed that is a command, asks if you meant that instead, y/n? (That would make computers seem a lot more intelligent!)

You might be looking for this: https://github.com/nvbn/thefuck/blob/master/README.md

Thanks, but my computer's too old to read that page. It's a thing already?

Yes, it's a command you can use when the previous one failed for some reason, that tries to correct the typos if any, or adds sudo or a missing option...