Fish Shell - Friendly Interactive Shell. It has tons of themes and customizable prompts, but most importantly it scans through your command history and autocompletes previous commands. You can even to back through previous versions of a certain command for example I copy a couple different files a lot so I’ll type ‘cd’ then press up to get to the specific command I need. It’ll also autocomplete command names if they’re in the path. It’s a life changer for sure