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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 sed

sed, short for Stream Editor, is an extremely powerful utility, and is another subject on which whole books are written. The goal here is to help you learn the basics for now, and to whet your appetite to learn more later.

If you’ve ever had to error-check or edit large text documents, you’ll appreciate the power of sed. For simple jobs, a one-line command, known as a sed script, might be all you need. For more complex jobs, such as when you might need to make multiple changes at a time to one or more documents, you can write lengthy program files and execute them with sed. The only limitation is your own imagination. But, before we can talk about the cool things you can do with sed, we need to take a brief intermission to talk about sed portability issues.

Understanding sed Portability Issues

If you need to work with non-Linux operating systems, you’ll encounter two different implementations of sed. Linux operating systems use the...

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