Bash Guide for Beginners

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Fultus Corporation, Jun 1, 2004 - Computers - 216 pages
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This guide discusses concepts useful in the daily life of the serious Bash user. While a basic knowledge of shell usage is required, it starts with a discussion of shell building blocks and common practices. Then it presents the grep, awk and sed tools that will later be used to create more interesting examples. The second half of the course is about shell constructs such as loops, conditional tests, functions and traps, and a number of ways to make interactive scripts. All chapters come with examples and exercises that will help you become familiar with the theory. Author Biography: Linux advocate of the first hour, Machtelt Garrels has made many contributions to the Open Source community and has been working for over a decade on the wider acceptance of Linux and other Open Source products. She is an active member of the Linux Documentation Project and training manager at CoreSequence. She writes whenever she has the time, closing gaps in existing documentation and taking the opportunity to simplify it when necessary, always keeping in mind that practice is the only way to learn. As a result, her work is full of examples and exercises, forcing the reader to apply the theoretical concepts.
 

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Contents

Bash and Bash scripts
1
Writing and debugging scripts
21
The Bash environment
31
Regular expressions
67
The GNU sed stream editor
77
The GNU awk programming language
87
Conditional statements
101
Writing interactive scripts
121
Repetitive tasks
139
10More on variables
155
11Functions
168
12Catching signals
175
A Shell Features
181
Common UNIX Commands
185
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