Why bash? wouldn't sh be enough?

[jaromil]

The script is still small enough to migrate to /bin/sh without much effort, leading to a more portable script. I would suggest you do so.

[0xacx]

What would the advantages be in practice?
I mean, what modern system does not support bash but supports sh?
The only case I could think of is running this script in alpine linux images, where bash is not included, but even there it can be easily installed.
In short, I don't see the reason to restrict to sh functionality for benefits that are not clear to me.
@jaromil Lmk what you think!

[Zeioth]

@jaromil What is failing on your end? Could you give more detail? It works fine on my end on all zsh, bash, and sh.

[jaromil]

Nothing failing! I have been scripting a lot in zsh and bash, nowadays I wish it would have been all in sh: portable and easier to analyse with stuff like shellcheck. Also BSD systems have native support without installing anything else.

[0xacx]

@jaromil I agree with that but don't you miss some bash functionality that sh doesn't have? A short list of the most important points is here I like and use some of these features in this script.