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 IBM Redbooks - IBM
This is a study guide for professionals wishing to prepare for the certification exam to achieve: IBM Certified Specialist - AIX V4.3 System Administration. It helps AIX administrators develop the knowledge and skills required for the certification.
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.
This book covers the practical aspects of using and interacting with the Bourne Shell, the root of all shells in Unix world. That includes interacting with the shell on a day-to-day basis for the purposes of operating the computer in normal tasks.
by Aurelio A. Heckert - Wikibooks
Awk has two faces: it is a utility for performing simple text-processing tasks, and it is a programming language for performing complex text-processing tasks. Awk is useful for simple, quick-and-dirty computational programming.