Magical one-liners
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Magical one-liners

About the Bundle

Bundle details

This bundle contains five example based guides for mastering command line text processing tools:

  1. GNU GREP and RIPGREP
  2. GNU SED
  3. GNU AWK
  4. Ruby one-liners cookbook
  5. Perl one-liners cookbook

The above links point to GitHub repos for the respective books. These repos have sample chapters, code snippets, exercises and other files related to these books.

These books will help you learn how to use these command line tools from the terminal. The various regex flavors used in grep/sed/awk are discussed in dedicated chapters/sections with plenty of examples. See my blog post for subtle differences between the BRE/ERE implementations in these tools.

Testimonials

I love your books on regex...As a student from the Digital VLSI space, it is indeed useful now and definitely in the future. It's really well written and really easy to understand the examples — feedback on reddit

Step up your cli fu with this fabulous intro & deep dive into awk. I learned a ton of tricks! — feedback on twitter

I consider myself pretty experienced at shell-fu and capable of doing most things I set out to achieve in either bash scripts or fearless one-liners. However, my awk is rudimentary at best, I think mostly because it's such an unforgiving environment to experiment in. These books you've written are great for a bit of first principles insight and then quickly building up to functional usage. I will have no hesitation in referring colleagues to them! — feedback on Hacker News

Bundle cover image created using canva.

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  • Categories

    • Computers and Programming
    • Ruby
    • Perl

About the Books

GNU GREP and RIPGREP

The search is on
  • 7,585

    Readers

  • 109

    Pages

  • PDF

  • EPUB

The book heavily leans on examples to present features of grep as well as regular expressions one by one. It is recommended that you manually type each example and experiment with them. Understanding both the nature of sample input string and the output produced is essential.

You should have prior experience working with command line and bash shell, should know concepts like file redirection, command pipeline and so on.

Exercises are also included to test your understanding.

Visit https://github.com/learnbyexample/learn_gnugrep_ripgrep for code snippets and files used for examples/exercises in the book. The repo also has solutions for exercises.

GNU SED

awesome stream editor
  • 6,728

    Readers

  • 98

    Pages

  • PDF

  • EPUB

The book heavily leans on examples to present features of sed as well as regular expressions one by one. It is recommended that you manually type each example and experiment with them. Understanding both the nature of sample input string and the output produced is essential.

You should have prior experience working with command line and bash shell, should know concepts like file redirection, command pipeline and so on.

Exercises are also included to test your understanding.

Visit https://github.com/learnbyexample/learn_gnused for code snippets and files used for examples/exercises in the book. The repo also has solutions for exercises.

GNU AWK

awesome one-liners
  • 4,278

    Readers

  • 110

    Pages

  • PDF

  • EPUB

Step up your cli fu with this fabulous intro & deep dive into awk. I learned a ton of tricks! — feedback on twitter

This book heavily leans on examples to present options and features of awk as well as regular expressions one by one. It is recommended that you manually type each example and experiment with them. Understanding both the nature of sample input string and the output produced is essential.

You should have prior experience working with command line and bash shell, should know concepts like file redirection, command pipeline and so on. You should also be familiar with programming concepts like variables, printing, functions, control structures, arrays, etc. Knowing basics of grep and sed will help in understanding similar features of awk.

Exercises are also included to test your understanding.

Visit https://github.com/learnbyexample/learn_gnuawk for code snippets and example files used in this book. The repo also has solutions for exercises.

Ruby one-liners cookbook

Example based guide for text processing with Ruby from the command line
  • 1,551

    Readers

  • 77

    Pages

  • PDF

  • EPUB

The book heavily leans on examples and exercises to help you get comfortable with using Ruby from the command line. It is recommended that you manually type each example and experiment with them.

Prerequisites: You should be comfortable with programming basics and have prior experience working with Ruby. You should know concepts like blocks, be familiar with string/array/hash/enumerable methods, regular expressions etc. You should also have prior experience working with command line and bash shell and be familiar with concepts like file redirection, command pipeline and so on.

Visit https://github.com/learnbyexample/learn_ruby_oneliners for code snippets and exercise files. The repo also has solutions for exercises.

Testimonials

This Ruby one-liners cookbook is incredible. Pretty mind boggling all the stuff you can do.
— feedback on twitter

Perl one-liners cookbook

Example based guide for text processing with Perl from the command line
  • 1,514

    Readers

  • 94

    Pages

  • PDF

  • EPUB

The book heavily leans on examples and exercises to help you get comfortable with using Perl from the command line. It is recommended that you manually type each example and experiment with them.

Prerequisites: You should be comfortable with programming basics and have prior experience working with Perl. You should know concepts like scalar, array, hash and special variables, be familiar with control structures, regular expressions etc. You should also have prior experience working with command line and bash shell and be familiar with concepts like file redirection, command pipeline and so on.

Visit https://github.com/learnbyexample/learn_perl_oneliners for code snippets and exercise files. The repo also has solutions for exercises.

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