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The Ultimate Linux Shell Scripting Guide

The Ultimate Linux Shell Scripting Guide

By : Donald A. Tevault
4.8 (5)
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The Ultimate Linux Shell Scripting Guide

The Ultimate Linux Shell Scripting Guide

4.8 (5)
By: Donald A. Tevault

Overview of this book

Embark on a comprehensive journey through command shells with this hands-on manual. While Bash is a Linux staple, Z shell and PowerShell are rising stars, applicable to Linux, macOS, and Unix. Progress seamlessly through chapters, each building on the last, creating a solid foundation. Learn through a unique approach: concepts, examples, and interactive labs. These labs, nearly a hundred strong, form the core of experiential learning, essential for script creation. Focusing on Linux commands and their scripting applications, this manual is universally relevant across Linux and select Unix-like systems. It goes beyond theory, offering practical scripts for real-world Linux administration. Scripts are designed for manageability, aiding learning and troubleshooting. The goal is to nurture the ability to craft intelligent, functional shell scripts. While centered on Bash, this book offers a peek into the future with Z Shell and PowerShell, expanding your skills and adaptability. This book is systematically structured and engaging so that it will guide you to master command shells, equipping you for real-world Linux challenges.
Table of Contents (26 chapters)
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24
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25
Index

Introducing zsh

Z Shell was created in 1990 by Paul Falstad. It’s an extension of the Bourne Shell, but also includes features from bash, Korn Shell (ksh), and C Shell (tcsh).

The C Shell, which used to be somewhat popular with Unix and Unix-like distros, is vastly different from anything you’ve seen. Writing a C Shell script is more akin to writing a C language program than it is to what you’re used to. So if you’re a C language programmer, you might like it. If you’re not, then you might not like it so much.

Z Shell comes as the default login shell for both macOS and Kali Linux. For pretty much everything else, you’ll need to install it yourself. As far as zsh scripting goes, most of what you’ve learned about scripting in bash also applies to scripting in zsh. So, in this chapter I’ll just present the unique features of zsh, and show you some simple scripting examples.

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