GNU sed, authored by Sundeep Agarwal, is a comprehensive guide to using sed, the popular stream editor used for filtering and transforming text. The book is designed to be an introduction to sed for beginners, with a focus on practical advice and best practices.
The book covers all the basics of sed, including how to use regular expressions to match and substitute text, how to use flags and options to refine editing operations, and how to manipulate text using sed. It also includes more advanced topics such as reading input from multiple sources, editing multiple files, and using sed in shell scripts.
One of the key strengths of GNU sed is its focus on practical advice and best practices. The book provides tips and tricks for using sed effectively in real-world scenarios, including how to use sed to edit log files, how to use sed to remove duplicates from datasets, and how to use sed to automate common tasks.
The book also includes a comprehensive reference section that provides detailed information on sed’s commands, options, and syntax. This makes it easy to look up specific information and quickly find the answers you need.
Throughout the book, Agarwal provides clear explanations and examples, making it easy to understand even the most complex concepts. He also includes tips for optimizing performance, troubleshooting common problems, and working with large datasets.
Whether you’re a beginner just getting started with sed or an experienced user looking for a comprehensive guide, GNU sed is an invaluable resource. With its focus on practical advice and clear explanations, this book is sure to help you become a more effective and efficient user of sed.