Ramesh Natarajan is giving out free copies of his ebook, Linux 101 Hacks (the password "linuxrocks" starts the download). Though it targets a more experienced audience than the Ubuntu Pocket Guide and Reference download Sam covered last month, it looks like a handy reference for those common command line tasks that arise every so often -- but not often enough that you completely recall how to do them.

Linux 101 Hacks can best be described as a study guide for beginning systems administrators ("Linux 101"). It focuses entirely on terminal use -- from using the command line to manage system processes, search and sort files, and make remote connections to using common text-based utilities (such as fdisk).