Keeping a Linux system running well, especially if you're in a professional setting, means having a few tricks up your sleeve. But not too many users can keep all of the little tips and tricks that they've learned in their brain for use on demand. It's usually necessary to have them written down and easily accessible when needed. That's what this section attempts to be - a repository of tips for every occasion - to be accessed when needed. They are classified by the program used or the general area of use.