learn_gnuawk

There's a online website [0] for mawk 1.3.4 that accepts input data, command and shows output as you construct the command There's a handy github repo [1] with libraries, has one for csv. For json, see [2]. But yeah, having official support would be better. Or, use tools like xsv, jq, etc that are built for those formats. You can use match() function to get capture group contents. If you are using GNU awk, then the syntax is much easier with arrays instead of fiddling with substr and RSTART/RLENGTH. For examples, see my repo [3] [0] https://awk.js.org/ [1] https://github.com/e36freak/awk-libs [2] https://github.com/step-/JSON.awk [3] https://github.com/learnbyexample/learn_gnuawk/blob/master/g...

I've recently modified and published that tutorial as an ebook [1], which can be read from the github repo or downloaded as PDF (currently free). I am also updating the book to include exercises, other minor improvements as well as epub version - expected release by next weekend. [1] https://github.com/learnbyexample/learn_gnuawk

Clickable urls: https://github.com/learnbyexample/learn_gnuawk https://learnbyexample.github.io/books/

Hi, I recently published my ebook on GNU awk one-liners [1]. It starts from the basics of awk syntax and then discusses one-liner examples. There's a chapter on regular expressions as well. The github repo has the details on how to get the PDF version, all the example files and code snippets used in the book, sample chapters as well the markdown source used to generate the PDF. I made all my ebooks [2] free last month amidst the pandemic fears. These include GNU grep & ripgrep, GNU sed and three books on regular expressions (Python, Ruby, JavaScript). I'd appreciate your feedback and hope the books are useful. Happy learning :) [1] https://github.com/learnbyexample/learn_gnuawk [2] https://learnbyexample.github.io/books/