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Linux Shell Scripting Cookbook, Second Edition

You're reading from   Linux Shell Scripting Cookbook, Second Edition Don't neglect the shell ‚Äì this book will empower you to use simple commands to perform complex tasks. Whether you're a casual or advanced Linux user, the cookbook approach makes it all so brilliantly accessible and, above all, useful.

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Product type Paperback
Published in May 2013
Publisher Packt
ISBN-13 9781782162742
Length 384 pages
Edition 2nd Edition
Tools
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Toc

Table of Contents (16) Chapters Close

Linux Shell Scripting Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Shell Something Out FREE CHAPTER 2. Have a Good Command 3. File In, File Out 4. Texting and Driving 5. Tangled Web? Not At All! 6. The Backup Plan 7. The Old-boy Network 8. Put on the Monitor's Cap 9. Administration Calls Index

Spell checking and dictionary manipulation


Most of the Linux distributions come with a dictionary file along with them. However, I find very few people to be aware of the dictionary file and hence, few make use of them. There is a command-line utility called aspell that functions as a spell checker. Let's go through a few scripts that make use of the dictionary file and the spell checker.

How to do it...

The /usr/share/dict/ directory contains some of the dictionary files. Dictionary files are text files that contain a list of dictionary words. We can use this list to check whether a word is a dictionary word or not.

$ ls /usr/share/dict/ 
american-english  british-english

To check whether the given word is a dictionary word, use the following script:

#!/bin/bash
#Filename: checkword.sh
word=$1
grep "^$1$" /usr/share/dict/british-english -q 
if [ $? -eq 0 ]; then
  echo $word is a dictionary word;
else
  echo $word is not a dictionary word;
fi

The usage is as follows:

$ ./checkword.sh ful ...
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