Linux Shell Scripting Tutorial - A Beginner's handbook:About
This book is for students and Linux System Administrators. It provides the skills to read, write, and debug Linux shell scripts using bash shell. The book begins by describing Linux and simple scripts to automate frequently executed commands and continues by describing conditional logic, user interaction, loops, menus, traps, and functions. Finally, book covers various sys admin related scripts such as making a backup, using cron jobs, writing interactive tools, web based tools, remote login, ftp and database backup related scripts. This book is intended for Linux system administrators or students who have mastered the basics of a Linux Operating System. You should be able to:
- Login to local or remote Linux system.
- Use basic Linux commands, such as cp, mv, rm, man,less, chmod and others.
- Create and edit text files in vi or any other text editor.
- GUI is not required except for interactive GTK+ based GUI scripts.
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- Ver.0.8 - 1998 - First draft with only 8 pages.
- Ver.0.9 - 2000 - Second draft with a few more pages.
- Ver.1.0 - 2002 - Third draft published on freeos.com.
- Ver.1.5r3 - 2004 - Updated version published on freeos.com.
- Ver.2.0.beta - Aug-2009 - Wiki started.
- This document is now in a wiki format.
- All user contributed content licensed under Attribution-Noncommercial-Share Alike 3.0 Unported.
- This web site / wiki ("Site") provides educational learning information on Linux scripting for sys admin work, but you are 100% responsible for what you do or don't do with it.
- The information compiled by Vivek Gite (and its contributors) as well as the links to complimentary material are provided "as is" with no warranty, express or implied, for their accuracy or reliability.
- You use these sites at your own risk, and acknowledge that, while every effort has been made to correct errors before they appear, this site may include certain inaccuracies, errors, or omissions. nixCraft makes no representations as to the suitability, reliability, availability, timeliness, and accuracy of the information on this site for any purpose.
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- The opinions and ideas expressed in this book are solely those of the author, and do not necessarily reflect those of nixCraft consultancy services and/or my current/past employers.
- This book is created and maintained by Vivek Gite - a Sr. UNIX admin. Vivek is specialized in the design of high performance computing (HPC) using Linux, security and optimization for the internet and intranet usage. Vivek has a particular interest in TCP/IP, Anti DDoS, Server side optimization, computer clusters, parallel computing, HPTC and embedded Linux / FreeBSD devices etc. Visit my Linux admin blog for more tutorials, guides and news about FOSS.
- Please give me your feedback. Whatever you see here, is based upon my own hard-earned experience. I have taught myself both through trial and error. Shoot me an email at [email protected].
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