Which Linux command or utility is simple, powerful, and surprisingly unknown to many people or used less often?
This could be a command or a piece of software or an application.
For example I’m surprised to find that many people are unaware of Caddy, a very simple web server that can make setting up a reverse proxy incredibly easy.
Another example is fzf. Many people overlook this, a fast command-line fuzzy finder. It’s versatile for searching files, directories, or even shell history with minimal effort.
I use it occasionally but every time I need to do something a tiny bit more complex than “extract field from an object” I have to spend half an hour studying its manual, at which point it’s faster to just write a Python script doing exactly what I need it to do.