Previous discussion: https://news.ycombinator.com/item?id=23048054 (762 points | May 2, 2020 | 126 comments)

See also:

* https://backreference.org/2010/02/10/idiomatic-awk/

* https://earthly.dev/blog/awk-examples/

* https://learnbyexample.github.io/learn_gnuawk/ (my ebook)