Sudo or Sudo Not, There Is No (4th) Try

By Jonathan Terrasi

If you’ve been using Linux for any length of time, at some point in some tutorial or troubleshooting guide you’ve more than likely encountered Linux’s magic word: “sudo”. A casual observer probably can tell you that it’s used to access restricted functions on your computer, but there’s much more to it than that. My hope is that by taking a moment to dig into the history and inner workings of this command, you will be better equipped to utilize — and respect — the power of “sudo”. For starters, it helps to look at Linux’s ancestor, Unix.

From: Linux Insider