Book Image

Mastering Linux Shell Scripting - Second Edition

By : Mokhtar Ebrahim, Andrew Mallett
5 (1)
Book Image

Mastering Linux Shell Scripting - Second Edition

5 (1)
By: Mokhtar Ebrahim, Andrew Mallett

Overview of this book

In this book, you’ll discover everything you need to know to master shell scripting and make informed choices about the elements you employ. Grab your favorite editor and start writing your best Bash scripts step by step. Get to grips with the fundamentals of creating and running a script in normal mode, and in debug mode. Learn about various conditional statements' code snippets, and realize the power of repetition and loops in your shell script. You will also learn to write complex shell scripts. This book will also deep dive into file system administration, directories, and system administration like networking, process management, user authentications, and package installation and regular expressions. Towards the end of the book, you will learn how to use Python as a BASH Scripting alternative. By the end of this book, you will know shell scripts at the snap of your fingers and will be able to automate and communicate with your system with keyboard expressions.
Table of Contents (17 chapters)

Try to be standard

You may use bash scripts from GitHub, and you may notice that there is a standard option scheme that is followed. It's not required, but it is preferable.

These are some of the commonly used options:

  • -a: List all items
  • -c: Get a count of all items
  • -d: Output directory
  • -e: Expand items
  • -f: Specify a file
  • -h: Show the help page
  • -i: Ignore the character case
  • -l: List a text
  • -o: Send output to a file
  • -q: Keep silent; don't ask the user
  • -r: Process something recursively
  • -s: Use stealth mode
  • -v: Use verbose mode
  • -x: Specify an executable
  • -y: Accept without prompting me