Informative and interesting article, thanks for sharing.

Quite a few of these POSIX improvements were new to me, even though it turns out that they already exist in the GNU versions of the tools.

Big stuff

-euo pipefail now being a posix standard is really awesome, as well as readlink and realpath (didn’t even know these last two were non-standard).

Slightly off-topic, but that is some interesting blogging platform.

Title is misleading. Article starts with a gigantic useless text about “In the 1950s”.