One of the first hurdles that every Linux newbie working on Command Line Interface (CLI) bumps into is finding files on the file system. Administrators who switch from Windows environment are so much used to the click-n-find mentality that discovering files via Linux CLI is painful for them. This tutorial is written for those friends who work on Linux and don’t have the luxury of Graphical User Interface (GUI).
As the description says, this is a great guide to anyone new to the Linux CLI. The tutorial talks mainly about the "locate" and "find" commands, and how they can be used to their maximum potential. Check it out @ SecGuru