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.

    • oldfart@lemm.ee
      2·
      2 days ago

      I immediately had flashbacks of diagnosing bad I/O performance on CentOS 5 servers. That was the week when I learned what updatedb is and why it was always running in the background (there was a lot of files)

      • z3rOR0ne
        6·
        5 days ago

        No sorry, I should have elaborated. The package name is mlocate but the command is locate. Occasionally run updatedb as it populates an sqlite db with every file on your system that you can then list out using locate followed by the filename you want to locate.

        EDIT: Lol. Sorry barely read your reply. Yes, you should wear a fedora while installing mlocate.

    • WalnutLum
      2·
      4 days ago

      I love locate! I have a cronjob that updates the db every night, then I can just find a file without having to think about where it is