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https://github.com/learnbyexample/Command-line-text-processing

:zap: From finding text to search and replace, from sorting to beautifying text and more :art:
https://github.com/learnbyexample/Command-line-text-processing

awk command-line ebook grep linux perl regex ruby sed text-processing

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:zap: From finding text to search and replace, from sorting to beautifying text and more :art:

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README 

        
# Command Line Text Processing



Learn about various commands available for common and exotic text processing needs. Examples have been tested on GNU/Linux - there'd be syntax/feature variations with other distributions, consult their respective `man` pages for details.



---



:warning: :warning: I'm no longer actively working on this repo. Instead, I've converted existing chapters into ebooks (see [ebook section](#ebooks) below for links), available under the same license. These ebooks are better formatted, updated for newer versions of the software, includes exercises, solutions, etc. Since all the chapters have been converted, I'm archiving this repo.



---







## Ebooks



Individual online ebooks with better formatting, explanations, exercises, solutions, etc:



* [CLI text processing with GNU grep and ripgrep](https://learnbyexample.github.io/learn_gnugrep_ripgrep/)

* [CLI text processing with GNU sed](https://learnbyexample.github.io/learn_gnused/)

* [CLI text processing with GNU awk](https://learnbyexample.github.io/learn_gnuawk/)

* [Ruby One-Liners Guide](https://learnbyexample.github.io/learn_ruby_oneliners/)

* [Perl One-Liners Guide](https://learnbyexample.github.io/learn_perl_oneliners/)

* [CLI text processing with GNU Coreutils](https://learnbyexample.github.io/cli_text_processing_coreutils/)

* [Linux Command Line Computing](https://learnbyexample.github.io/cli-computing/)



See https://learnbyexample.github.io/books/ for links to PDF/EPUB versions and other ebooks.







## Chapters



As mentioned earlier, I'm no longer actively working on these chapters:



* [Cat, Less, Tail and Head](./tail_less_cat_head.md)

    * cat, less, tail, head, Text Editors

* [GNU grep](./gnu_grep.md)

* [GNU sed](./gnu_sed.md)

* [GNU awk](./gnu_awk.md)

* [Perl the swiss knife](./perl_the_swiss_knife.md)

* [Ruby one liners](./ruby_one_liners.md)

* [Sorting stuff](./sorting_stuff.md)

    * sort, uniq, comm, shuf

* [Restructure text](./restructure_text.md)

    * paste, column, pr, fold

* [Whats the difference](./whats_the_difference.md)

    * cmp, diff

* [Wheres my file](./wheres_my_file.md)

* [File attributes](./file_attributes.md)

    * wc, du, df, touch, file

* [Miscellaneous](./miscellaneous.md)

    * cut, tr, basename, dirname, xargs, seq







## Webinar recordings



Recorded couple of videos based on content in the chapters, not sure if I'll do more:



* [Using the sort command](https://www.youtube.com/watch?v=qLfAwwb5vGs)

* [Using uniq and comm](https://www.youtube.com/watch?v=uAb2kxA2TyQ)



See also my short videos on [Linux command line tips](https://www.youtube.com/watch?v=p0KCLusMd5Q&list=PLTv2U3HnAL4PNTmRqZBSUgKaiHbRL2zeY)







## Exercises



Check out [exercises](./exercises) directory to solve practice questions on `grep`, right from the command line itself.



See also my [TUI-apps](https://github.com/learnbyexample/TUI-apps) repo for interactive CLI text processing exercises.







## Contributing



* Please [open an issue](https://github.com/learnbyexample/Command-line-text-processing/issues) for typos or bugs

    * As this repo is no longer actively worked upon, **please do not submit pull requests**

* Share the repo with friends/colleagues, on social media, etc to help reach other learners

* In case you need to reach me, mail me at `echo '[email protected]' | tr 'a-z' 'n-za-m'` or send a DM via [twitter](https://twitter.com/learn_byexample)







## Acknowledgements



* [unix.stackexchange](https://unix.stackexchange.com/) and [stackoverflow](https://stackoverflow.com/) - for getting answers to pertinent questions as well as sharpening skills by understanding and answering questions

* Forums like [Linux users](https://www.linkedin.com/groups/65688), [/r/commandline/](https://www.reddit.com/r/commandline/), [/r/linux/](https://www.reddit.com/r/linux/), [/r/ruby/](https://www.reddit.com/r/ruby/), [news.ycombinator](https://news.ycombinator.com/news), [devup](http://devup.in/) and others for valuable feedback (especially spotting mistakes) and encouragement

* See [wikipedia entry 'Roses Are Red'](https://en.wikipedia.org/wiki/Roses_Are_Red) for `poem.txt` used as sample text input file







## License



This work is licensed under a [Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-nc-sa/4.0/)