An Awk Primer
by Aurelio A. Heckert
Publisher: Wikibooks 2011
Number of pages: 49
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.
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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 Machtelt Garrels
Useful concepts in the daily life of a Bash user. Basic shell knowledge is required. Discussion about common shell practices and building blocks, grep, awk and sed tools with more examples. The second part is about loops, functions and traps.
by Peter H. Salus - Reed Media Services
In addition to covering a history of free and open source, The Daemon, the Gnu, and the Penguin explores how free and open software is changing the world. It is authored by Peter Salus, a noted UNIX, open source, and Internet historian and author.
by Jim Tyson, et al. - Wikibooks
Unix is an operating system designed for use on any kind of computer or computing device. It is a multi-tasking, multi-user system. Unix is also part of the underlying technology of the Internet. Many of the web servers run Apache under Unix.