Guide to X11
by Steve Ambler, et al.
Publisher: Wikibooks 2010
This book is about the X Window System. Some users describe it as the Unix and Linux graphics drivers. X11 is the graphical environment for most Unix or Unix-like systems, including *BSD and GNU/Linux; it provides access to screen, keyboard, and mouse.
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by Mark Bates - ConqueringTheCommandLine.com
Learn to master the most valuable and useful command line tools for Unix and Linux based systems. In this book you will find not only the most useful command line tools you need to know, but also the most helpful options and flags for those tools.
by Frank G. Fiamingo - The Ohio State University
Systems administration is the installation and maintenance of the UNIX computer system. The system administrator will need to maintain the software and hardware for the system. This includes hardware configuration, software installation, etc.
by Carey Bunks - Sams
This book is not about tips and tricks, and it's not a collection of image manipulation problems. It is about understanding image manipulation concepts, about knowing which GIMP tools are most effective, and about the savvy use of these tools.
by Greg Lehey - O'Reilly
The book deals with the whole life cycle of porting, from setting up a source tree on your system to correcting platform differences. It discusses the differences between versions of UNIX and the areas where porters tend to have problems.