If you use Linux, chances are pretty good you use Bash. But what is it?

In this guide, written by Jack Wallen for TechRepublic Premium, learn about Bourne-Again SHell, and why it is a useful tool for Linux administrators. The download explains how to create aliases and functions, customize your Bash prompt, and more.

Featured text from the guide:

HOW TO WORK INTERACTIVELY

You might think that Bash is nothing more than a means to run commands. It’s actually more than that. Bash allows you to work interactively. For example, type:

myvar=10

Hit Enter on your keyboard.

Now type: echo $myvar

You should see 10 printed out.

Now type: let myvar+=1

Type: echo $myvar

You should now see 11 printed out.

Boost your Bash knowledge with our eight-page PDF guide. This is available for download at just $9. Alternatively, enjoy complimentary access with a Premium annual subscription.

TIME SAVED: Crafting this content required 16 hours of dedicated writing, editing, research, and design.