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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
Other Books You May Enjoy
25
Index

Understanding grep

I’ve already shown you some fancy ways to search for files on your system. But, what if you need to search for something that’s in a file? What if you don’t know exactly what you’re looking for? Worse yet, what if you don’t even know which file to look in? Not to worry, grep is here to help.

grep, short for Global Regular Expression Print, is a powerful command-line utility that comes packaged with just about every Unix or Unix-derived operating system. (This includes Linux and macOS.) There’s also an available version for Windows.

You can direct grep to search through one file or many. You can also pipe in output from some other utility so that you’ll see only the information that you want to see. And, the fact that grep can use regular expressions allows you to perform searches even when you only have an approximate idea of what you’re searching for.

grep isn’t hard, but is does require...

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