GNU AWK
GNU AWK
awesome one-liners
About the Book
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.
Testimonials
Step up your cli fu with this fabulous intro & deep dive into awk. I learned a ton of tricks! — feedback on twitter
About the Author
Bundles that include this book
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
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