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The Ultimate Linux Shell Scripting Guide

You're reading from   The Ultimate Linux Shell Scripting Guide Automate, Optimize, and Empower tasks with Linux Shell Scripting

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Product type Paperback
Published in Oct 2024
Publisher Packt
ISBN-13 9781835463574
Length 696 pages
Edition 1st Edition
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Author (1):
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Donald A. Tevault Donald A. Tevault
Author Profile Icon Donald A. Tevault
Donald A. Tevault
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Table of Contents (26) Chapters Close

Preface 1. Getting Started with the Shell 2. Interpreting Commands FREE CHAPTER 3. Understanding Variables and Pipelines 4. Understanding Input/Output Redirection 5. Customizing the Environment 6. Text-Stream Filters – Part 1 7. Text Stream Filters – Part 2 8. Basic Shell Script Construction 9. Filtering Text with grep, sed, and Regular Expressions 10. Understanding Functions 11. Performing Mathematical Operations 12. Automating Scripts with here Documents and expect 13. Scripting with ImageMagick 14. Using awk – Part 1 15. Using awk – Part 2 16. Creating User Interfaces with yad, dialog, and xdialog 17. Using Shell Script Options with getops 18. Shell Scripting for Security Professionals 19. Shell Script Portability 20. Shell Script Security 21. Debugging Shell Scripts 22. Introduction to Z Shell Scripting 23. Using PowerShell on Linux 24. Other Books You May Enjoy
25. Index

Introduction to Z Shell Scripting

Thus far, we’ve mainly talked about bash, since it’s the preeminent login shell and scripting environment for Linux. In recent years, a fairly new kid on the block, Z Shell (zsh) has been gaining a bit of popularity as a default login shell. But, even on the operating systems that come with zsh as the login shell, bash is still there, and bash is what most people still use for scripting purposes. Be aware though, that scripting in zsh does have certain advantages, such as better math capabilities, enhanced variable expansion, and the ability to use native zsh commands instead of utilities such as find, grep, or sed. These features can help you create scripts that are a bit simpler and lighter than equivalent bash scripts.

Most articles and YouTube videos that you see about zsh focus on the user interface enhancements, and very few focus on zsh scripting. Unfortunately, the few books and tutorials that do focus on zsh scripting aren...

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