It used to be that to use Linux you needed to immediately familiarize yourself with the command line. Desktop environments like GNOME and KDE have made using Linux much easier for beginners. You could use Linux for a long time without knowing a single terminal command. Eventually, though, you’ll want to do something that will require use of the command line, and once you dive in here, you’ll eventually need to know about environment variables. This might seem like an arcane term, but environment variables are easy to understand. Related: 17 Fun Linux Commands to Run in the Terminal… Read more