Skip to content

learnbyexample/learn_gnused

Repository files navigation

CLI text processing with GNU sed

Example based guide to mastering GNU sed. Visit https://youtu.be/nvKyKoeiZD8 for a short video about the book.

CLI text processing with GNU sed ebook cover image

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

For solutions to the exercises, see Exercise_solutions.md.

You can also use this interactive TUI app to practice some of the exercises from the book.

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


E-book

For a preview of the book, see sample chapters.

The book can also be viewed as a single markdown file in this repo. See my blogpost on generating pdfs from markdown using pandoc if you are interested in the ebook creation process.

For the web version of the book, visit https://learnbyexample.github.io/learn_gnused/


Testimonials

Thank you for choosing to write and share your knowledge. I read your books on CLI and sed - I think they are very comprehensive and very well explained. Keep up the great work

feedback on twitter


Feedback and Contributing

⚠️ ⚠️ Please DO NOT submit pull requests. Main reason being any modification requires changes in multiple places.

I would highly appreciate it if you'd let me know how you felt about this book. It could be anything from a simple thank you, pointing out a typo, mistakes in code snippets, which aspects of the book worked for you (or didn't!) and so on. Reader feedback is essential and especially so for self-published authors.

You can reach me via:


Table of Contents

  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

Acknowledgements

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


License

The book is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The code snippets are licensed under MIT, see LICENSE file.