Learning Linux Shell Scripting - Second Edition 2nd ed. Edition, Ganesh Naik

Break through the practice of writing tedious code with shell scripts

Key Features

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

Book 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

Who This Book Is For

Learning Linux Shell Scripting is ideal for those who are proficient at working with Linux and want to learn about shell scripting to improve their efficiency and practical skills.

Table of Contents

Getting Started and Working with Shell Scripting

Drilling Deep into Process Management, Job control, and Automation

Using Text processing & filters in your scripts

Working with Commands

Exploring Expressions and Variables

Neat Tricks with Shell Scripting

Performing Arithmetic Operations in Shell Scripts

Automating Decision Making in Scripts

Automating Repetitive Tasks

Working with Functions

Using Advanced Functionality in Scripts

System Start-up and Customizing a Linux System

Understanding Pattern Matching and Regular Expressions with sed & awk

Embedding other languages in Scripts

Database administration using Shell Scripts

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