Book Image

Linux Command Line and Shell Scripting Bible - Third Edition

By : Richard Blum, Christine Bresnahan
Book Image

Linux Command Line and Shell Scripting Bible - Third Edition

By: Richard Blum, Christine Bresnahan

Overview of this book

The Linux command line enables you to type specific shell commands directly into the system to manipulate files and query system resources. Command line statements can be combined into short programs called shell scripts, a practice increasing in popularity due to its usefulness in automation. Linux is a robust system with tremendous potential, and Linux Command Line and Shell Scripting Bible opens the door to new possibilities. Linux Command Line and Shell Scripting Bible is your essential Linux guide. It contains new functional examples that are fully updated to align with the latest Linux features. Beginning with command line fundamentals, the book moves into shell scripting and shows you the practical application of commands in automating frequently performed functions. This book is a complete guide providing detailed instruction and expert advice working within this aspect of Linux. Whether used as a tutorial or as a quick reference, this book contains information that every Linux user should know.
Table of Contents (34 chapters)
2
Part I: The Linux Command Line
13
Part II: Shell Scripting Basics
20
Part III: Advanced Shell Scripting
28
Part IV: Creating Practical Scripts
32
End User License Agreement

Obtaining a Quote

Inspirational quotes have long been used in the business environment. You may have a few on your office wall right now. This fun little and interesting script helps you obtain a daily inspirational quote to use as you please.

This section takes you through how to create this script. Included is a new rich utility that has not been covered in the book yet. The script also uses some utilities that have been covered, such as sed and gawk.

Understanding the required functions

Several great websites allow you to obtain daily inspiration quotes. Just open your favorite search engine, and you can find many sites. After you find a site for your daily quote, you need a utility to download that quote. For this script, the wget utility is just what's needed.

Learning about the wget utility

The wget utility is a flexible tool that allows web pages to be downloaded to your local Linux system. From these pages, you can glean your daily inspirational quote.