I seem to remember sed and awk were in one single O’Reilly book for both… bargain…
I’m not good with tutorials… or books…
I need practical applications and learn by using them - trial and error…
I use awk fairly often, I use sed syntax all the time, either sed directly, or search and replace in vi / vim, or the perl rename command (it’s the default rename command in Debian based distros).
Both sed and awk use “REGEX” which I can barely get my head around - I barely even understand the bare minimum :