I learnt it via the org babel way too and published my notes when I finished the chapters of the book: https://psibi.in/awk/ https://psibi.in/awk/ The whole in

I learnt it via the org babel way too and published my notes when I finished the chapters of the book: https://psibi.in/awk/ https://psibi.in/awk/ The whole interactive experience of evaluating awk script and tinkering with it in a single place, greatly helped while learning it.