Learning Linux Shell Scripting Second Edition

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Learning Linux Shell Scripting Second Edition

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內容描述

Unleash the power of Shell scripts to solve real-world problems by breaking through the practice of writing tedious code
Key Features

Learn how to efficiently and effectively build shell scripts and develop advanced applications with this handy book
Develop high quality and efficient solutions by writing professional and real-world scripts, and debug scripts by checking and shell tracing
A step-by-step tutorial to automate routine tasks by developing scripts from a basic level to very advanced functionality

Book Description
Linux is one of the most powerful and universally adopted OSes. 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 can read this file and act on the commands as if they were typed on the keyboard. Shell scripting is used to automate day-to-day administration tasks and for testing or product development activities.
This book covers Bash, GNU Bourne Again SHell, preparing you to work in the exciting world of Linux shell scripting. We start with an introduction to the Shell environment and explain basic commands used in Shell. Next, we move on to check, kill or control the execution of processes in Linux OS. Further, we teach you about the filter tools available in Linux and explain standard output and standard errors devices. As compared to last editions, we have used CentOS distribution instead of Ubuntu Distribution. Linux Shell Scripting is independent of Linux Distributions, but we have tried to educate reader for both the types of distros.Then we will ensure, you understand Shell's interpretation of commands and get a firmer grasp so you use them in practice. Next, you'll experience some real-world essentials such as debugging and perform Shell arithmetic fluently. Then you'll take a step ahead and learn new and advanced topics in Shell scripting, such as starting up a system and customizing a Linux environment. We will also learn about grep, Stream Editor, and Awk, which are very powerful text filters & editors.
Finally, you'll get to understand the capabilities of scripting and learn about using other language scripts such as Python, Pearl, Ruby scripts in Shell Scripts as well as you learn accomplishing Database administration tasks for databases such as MySQL & Oracle
What You Will Learn

Familiarize yourself with the various text filtering tools available in Linux
Combine the fundamental text and file processing commands to process data and automate repetitive tasks
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 and signals and using dialogs to develop screens
Start up a system and customize a Linux system
Take an in-depth look at regular expressions and pattern matching to understand the capabilities of scripting
Use existing other language scripts such as Python, Pearl & Ruby in Shell Scripts
Automate database administration tasks for various databases such as MySQL, Oracle and similar

Who This Book Is For
This book is ideal for those who are proficient at working with Linux and who want to learn about shell scripting to improve their efficiency and practical skills.
By the end of this book, you will be able to confidently use your own shell scripts in the real world