A couple of things about Himanshu's demo:
1. You can use arguments in the middle using Bash functions. It's very useful for things like ImageMagick, youtube-dl, ffmpeg, etc.
2. I kept comparing keep to `history | ag "search"` and the zsh autocomplete plugin. So, if keep were just as fast as those two, it would be worth a try!
I can certainly see `keep`'s usefulness for people starting out with the command line. :+1:
Demo: https://www.youtube.com/watch?v=eXJPEQlpnZQ
@icyflame's suggestion: