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Example based guide to mastering GNU awk
Shell Awk
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README.md

GNU AWK

Example based guide to mastering GNU awk.

Exercises not yet included, but will be added soon...

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


E-book

You can purchase the book using these links:

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 pdf from markdown using pandoc if you are interested in the ebook creation process.


Feedback

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/52758608-gnu-awk

Twitter: https://twitter.com/learn_byexample


Table of Contents

  1. Preface
  2. Installation and Documentation
  3. awk introduction
  4. Regular Expressions
  5. Field separators
  6. Record separators
  7. In-place file editing
  8. Using shell variables
  9. Control Structures
  10. Built-in functions
  11. Multiple file input
  12. Processing multiple records
  13. Two file processing
  14. Dealing with duplicates
  15. awk scripts
  16. Gotchas and Tips
  17. Further Reading

Acknowledgements

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

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