One of the most powerful Unix command-line utilities is “find” — but it also has a huge number of options, and most of the documentation I’ve read on “find” is hard to follow and understand. That’s a shame, because once you understand what “find” does and how it works, you can accomplish quite a bit. …
If you use a modern, open-source Unix shell — and by that, I basically mean either bash or zsh — then you really should know this shortcut. Control-R is probably the shell command (or keystroke, to be technical about it) that I use most often, since it lets me search through my command history. Let’s…