Example based guide to mastering GNU sed.

The book also includes exercises to test your understanding, which is presented together as a single file in this repo - Exercises.md

See Version_changes.md to keep track of changes made to the book.

You can purchase the book using these links:

• https://gumroad.com/l/gnu_sed
• https://leanpub.com/gnu_sed
• https://www.instamojo.com/learnbyexample/gnu-sed/

For a preview of the book, see sample chapters

Please open an issue if you spot any typo/errors.

I'd also highly appreciate your feedback about the book.

Goodreads: https://www.goodreads.com/book/show/48641172-gnu-sed

Twitter: https://twitter.com/learn_byexample

1. Preface
2. Introduction
3. In-place file editing
4. Selective editing
5. BRE/ERE Regular Expressions
6. Flags
7. Shell substitutions
8. z, s and f command line options
9. append, change, insert
10. Adding content from file
11. Control structures
12. Processing lines bounded by distinct markers
13. Gotchas and Tricks
14. Further Reading

• GNU sed documentation - manual and examples
• stackoverflow and unix.stackexchange - for getting answers to pertinent questions on bash, sed and other commands
• tex.stackexchange - for help on pandoc and tex related questions
• Cover image
  • draw.io
  • tree icon by Gopi Doraisamy under Creative Commons Attribution 3.0 Unported
  • wand icon by roundicons.com
• softwareengineering.stackexchange and skolakoda for programming quotes
• Warning and Info icons by Amada44 under public domain

Special thanks to all my friends and online acquaintances for their help, support and encouragement, especially during difficult times.

The code snippets are licensed under MIT, see LICENSE file