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Key benefits

•Learn to impeccably build shell scripts and develop advanced applications

•Create smart solutions by writing and debugging scripts

•A step-by-step tutorial to automate routine tasks by developing scripts

Description

Linux is the most powerful and universally adopted OS. Shell is a program that gives the user direct interaction with the operating system. Scripts are collections of commands that are stored in a file. The shell reads this file and acts on commands as if they were typed on the keyboard. Learning Linux Shell Scripting covers Bash, GNU Bourne Again Shell, preparing you to work in the exciting world of Linux shell scripting. CentOS is a popular rpm-based stable and secured Linux distribution. Therefore, we have used CentOS distribution instead of Ubuntu distribution. Linux Shell Scripting is independent of Linux distributions, but we have covered both types of distros. We start with an introduction to the Shell environment and basic commands used. Next, we explore process management in Linux OS, real-world essentials such as debugging and perform Shell arithmetic fluently. You'll then take a step ahead and learn new and advanced topics in Shell scripting, such as decision making, starting up a system, and customizing a Linux environment. You will also learn about grep, stream editor, and AWK, which are very powerful text filters and editors. Finally, you'll get to grips with taking backup, using other language scripts in Shell Scripts as well as automating database administration tasks for MySQL and Oracle. By the end of this book, you will be able to confidently use your own shell scripts in the real world.

What you will learn

•Familiarize yourself with the various text filtering tools available in Linux

•Understand expressions and variables and how to use them practically

•Automate decision-making and save a lot of time and effort of revisiting code

•Get to grips with advanced functionality such as using traps, dialogs to develop screens & Database administration such as MySQL or Oracle

•Start up a system and customize a Linux system

•Taking backup of local or remote data or important files.

•Use existing other language scripts such as Python, Perl & Ruby in Shell Scripts

What do you get with eBook?

Instant access to your Digital eBook purchase

Download this book in EPUB and PDF formats

Access this title in our online reader with advanced features

DRM FREE - Read whenever, wherever and however you want

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Tapan kumar Nov 01, 2018

well written

Amazon Verified review

mohamed azarudeen Jul 21, 2019

Easy to learn and understand

James Oct 16, 2019

well laid out reference book with plenty of useful examples

flohoe May 29, 2020

This is by far the worst book I read from Packt. Well I just started, won't finish. Was there ever some editing?! Not only about the content (more or less copy paste from everywhere a bit, no real thread), but there are just wrong scripts sometimes, text/screenshots are missing. Poor quality, don't buy

Kristjan Stefansson Oct 04, 2018

This is by far the worst computer and programming book I've ever read, I am still waiting for my mind to come back to former state after all the confusion. Don't buy it. It's a waste of time because it's badly written and confusing and nothing in it you can't find on the web.

Learning Linux Shell Scripting: Leverage the power of shell scripts to solve real-world problems , Second Edition

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