文档介绍：Linux Shell Scripting Cookbook
Copyright © 2011 Packt Publishing
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First published: January 2011
Production Reference: 1200111
Published by Packt Publishing Ltd.
32 Lincoln Road
Olton
Birmingham, B27 6PA, UK.
ISBN 978-1-849513-76-0
Cover Image by Charwak A (charwak86@)
Table of Contents
Preface 1
Chapter 1: Shell Something Out 7
Introduction 7
Printing in the terminal 9
Playing with variables and environment variables 12
Doing math calculations with the shell 17
Playing with file descriptors and redirection 19
Arrays and associative arrays 25
Visiting aliases 27
Grabbing information about terminal 29
Getting, setting dates, and delays 30
Debugging the script 33
Functions and arguments 35
Reading the output of a sequence mands 38
Reading "n" characters without pressing Return 40
Field separators and iterators 41
Comparisons and tests 44
Chapter 2: Have a mand 49
Introduction 50
Concatenating with cat 50
Recording and playback of terminal sessions 53
Finding files and file listing 55
Playing with xargs 63