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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

Fast command-line navigation using pushd and popd


When dealing with multiple locations on a terminal or shell prompt, our common practice is to copy and paste the paths. However, this is ineffective when there is only command-line access without a GUI. For example, if we are dealing with locations /var/www, /home/slynux, and /usr/src, when we need to navigate to these locations one by one, it is really difficult to type the path every time when we need to switch between the paths. Hence, the command-line interface (CLI) based navigation techniques such as pushd and popd are used. Let us see how to use them in this recipe.

Getting ready

pushd and popd are used to switch between multiple directories without the copying and pasting of directory paths. pushd and popd operate on a stack. We know that a stack is a last in first out (LIFO) data structure. It will store the directory paths in a stack and switch between them using the push and pop operations.

How to do it...

We omit the use of the cd...

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