There's bash. Then you need better loops/conditionals and more usable structures. That's when one should think of using a scripting language instead. I think the parent goes too far after that and what he's talking about is not something bash can do (well).

That said, a lot of very complicated things are actually written in bash. Distrobox I think is for example.

>That said, a lot of very complicated things are actually written in bash. Distrobox I think is for example.

They're only complicated BECAUSE they're written in bash. If they were written in Python they would be much less complicated, more modular, able to use many existing industrial strength well tested python modules instead of rolling their own ad-hoc ones, and much easier to maintain.