Author of article here (but not submitter). I wrote this years ago, and it's fun to see it pop up on HN like this every year or two!
Here's another bash article people like:
Here's another bash article people like:
BTW. I developed small set of common functions for strict mode, called bash-modules. Can you look at it and provide some feedback? See https://github.com/vlisivka/bash-modules .