BASH Programming (2000) is a comprehensive guide to understanding and using the Bash shell, a popular Unix and Linux command-line interface. Written by Brian Ward, this book is an essential resource for anyone looking to learn the ins and outs of Bash programming.

The book starts with an introduction to Bash and its history, followed by an overview of the shell’s syntax and basic commands. Ward then delves into the more advanced features of Bash, including variables, loops, functions, and debugging techniques.

One of the most useful sections of the book is the chapter on scripting, which explains how to create Bash scripts for automating tasks and customizing the shell environment. The chapter also covers shell variables, positional parameters, and shell options.

Another valuable aspect of the book is its coverage of regular expressions, a powerful tool for searching and manipulating text in the shell. Ward explains the syntax of regular expressions and demonstrates how to use them with Bash commands like grep, sed, and awk.

Throughout the book, Ward provides numerous examples and exercises to help readers solidify their understanding of Bash programming. He also includes tips and tricks for optimizing shell scripts and troubleshooting common errors.

Whether you are a system administrator, programmer, or power user, BASH Programming (2000) is an invaluable resource for mastering the Bash shell. With its clear explanations, detailed examples, and practical advice, this book is sure to become a go-to reference for anyone working with Unix or Linux systems.