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

Product type Paperback

Published in Oct 2024

Publisher Packt

ISBN-13 9781835463574

Length 696 pages

Edition 1st Edition

Languages

Bash

Tools

Linux

Concepts

Cybersecurity

Author (1):

Donald A. Tevault

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Table of Contents (26) Chapters

Preface

1. Getting Started with the Shell FREE CHAPTER

2. Interpreting Commands

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

Real-World Cross-Platform PowerShell Scripts

To come up with some real-world examples of cross-platform PowerShell scripts, I did a DuckDuckGo search for the PowerShell script examples Linux text string. The coolest thing I found is the Mega Collection of PowerShell Scripts on Github. You can use git to download it by doing:

git clone https://github.com/fleschutz/PowerShell.git

Once it’s downloaded, cd into the PowerShell/scripts/ directory, and take a look at what’s there. For our first example, let’s look at something simple that will run on all platforms.

The write-marquee.ps1 Script

The write-marquee.ps1 script is truly cross-platform, because it doesn’t use any commands that are specific to any particular operating system. All it does is create a marquee message that flows across on your screen. I can’t show the entire script here, but you can look at your own local copy. So, let’s just look at the individual parts of...