Learn the Command Line, codecademy tutorial
This is a course from Codecademy website. It teaches the command line of Unix-based systems. The command line might seem intimidating at first but once you are comfortable with it, it is an indispensable skill. Through the command line, you can navigate through your entire computer. You can create, delete, copy, and move files and folders. You can search through all your files and folders as well and see all your computer processes from that same black screen. Start learning the command line today and become an even more powerful wielder of the keyboard!