Windows and Mac might get most of the attention, but Linux is an operating system that's worth your time if you plan on working in tech. Prominent in operating hardware like desktops and laptops, mobile devices, networking equipment, planes, and much more, Linux is soaring in popularity, and, as such, demand for Linux-savvy administrators is at an all time high.

With the Pay What You Want: Linux Lifetime Bundle, you can join their ranks for a price you get to choose. Here's how the deal works. Pay any price and you'll unlock one of the collection's four courses. Beat the average price paid (about $10 at the moment), and you'll instantly unlock the remaining three.

Featuring more than 20 hours of training, this collection will get you up to speed with the ins-and-outs of today's fastest-growing operating system. From the fundamentals of operating systems to Red Hat Linux networking and even Java programming -- all for a price you choose.

Note: TechSpot may receive a commission for sales from links on this post through affiliate programs.