Learning Linux Shell Scripting
By :
Learning Linux Shell Scripting
By:
Overview of this book
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.
Table of Contents (20 chapters)
Learning Linux Shell Scripting
Credits
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
Getting Started and Working with Shell Scripting
Drilling Deep into Process Management, Job Control, and Automation
Using Text Processing and 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
Working with Functions
Using Advanced Functionality in Scripts
System Startup and Customizing a Linux System
Pattern Matching and Regular Expressions with sed and awk
Index
Customer Reviews