Learning Linux Shell Scripting

Learning Linux Shell Scripting Front CoverLearning Linux Shell Scripting
by 作者: Ganesh Sanjiv Naik
Pages: 306 pages
Edition 版本: 1
Language 语言: English
Publisher Finelybook 出版社: Packt Publishing
Publisher Finelybook 出版日期: 2015-12-31
ISBN-10 书号: 1785286218
ISBN-13 书号: 9781785286216
Publisher Finelybook 出版社: Packt


Book Description
Unleash the power of shell scripts to solve real-world problems by breaking through the practice of writing tedious code
About This Book
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

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.

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
In Detail
Linux is the 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,and for testing or product development tasks.
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,and 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.
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 system. Finally,you'll get to understand the capabilities of scripting and learn about Grep,Stream Editor,and Awk.
Style and approach
This practical book will go from the very basics of shell scripting to complex,customized automation. The idea behind this book is to be as practical as possible and give you the look and feel of what real-world scripting is like.
Contents
Chapter 1: Getting Started and Working with Shell Scripting
Chapter 2: Drilling Deep into Process Management,Job Control,and Automation
Chapter 3: Using Text Processing and Filters in Your Scripts
Chapter 4: Working with Commands
Chapter 5: Exploring Expressions and Variables
Chapter 6: Neat Tricks with Shell Scripting
Chapter 7: Performing Arithmetic Operations in Shell Scripts
Chapter 8: Automating Decision Making in Scripts
Chapter 9: Working with Functions
Chapter 10: Using Advanced Functionality in Scripts
Chapter 11: System Startup and Customizing a Linux System
Chapter 12: Pattern Matching and Regular Expressions with sed and awk

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