Howto: Delete Files Permanently and Securely in Linux

From Techthrob.com: We all know that when you simply delete a file, it's possible to recover it later. Sometimes this is useful, if you accidentally delete something important; but usually this is a problem, and you really want that file gone forever. This howto explains how to delete a file in Linux securely and permanently, so it can never be recovered. Read More at Techthrob.com