Linux distribution
The Ubuntu User Guide Version 06.02.pdf
Ubuntu is an operating system based on the Linux kernel. There are many operating systems based on Linux, and Ubuntu is only one of hundreds of these. I don’t recommend Ubuntu to everyone, but here are some things that make Ubuntu unique among Linux distributions.
Step-by-Step Linux Guide.pdf
Step by Step Linux Guide, describes the system administration aspects of using Linux. It does not matter how deep is your knowledge on Linux, what distribution you use. This ebook covers more on system administration on Linux itself
Linux from Scratch.pdf
This book describes the process of creating your own Linux system from scratch from an already installed Linux distribution, using nothing but the sources of software that are needed.
100 Linux Tips and Tricks.pdf
These are tips and tricks useful when installing Linux itself or any new program. Some tips will cover new means of installing Linux on non-typical hardware, others will explain how to take Linux distributions from an FTP server and make your own CD-ROM with them

