Magical one-liners
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Magical one-liners

About the Bundle

Example based guides to mastering command line text processing tools.

The bundle includes the following five books:

  1. learn_gnugrep_ripgrep
  2. learn_gnused
  3. learn_gnuawk
  4. learn_ruby_oneliners
  5. learn_perl_oneliners

The above links point to GitHub repos for the respective books. These repos have files used in examples/exercises and other information related to the books.

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About the Books

GNU GREP and RIPGREP

The search is on
  • 6,207

    Readers

  • 111

    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
  • 5,361

    Readers

  • 100

    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
  • 2,896

    Readers

  • 113

    Pages

  • PDF

  • EPUB

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
  • 316

    Readers

  • 78

    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.

Perl one-liners cookbook

Example based guide for text processing with Perl from the command line
  • 290

    Readers

  • 88

    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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