The "with proper system integration" is the kicker. Powershell does run on linux[0], there is nothing stopping you or anyone else in creating this "proper integration", but it has yet to be done. I find this telling in what the real value proposition of this kind of shell is in the first place.

I do sympathize with you over bash, I have seen people wield it in quite horrific ways. In general I find that people are under utilizing their functions. For one example, functions in most shell languages have stdin, stdout, and stderr just like programs you call but I often see people miss this and thus miss the ability to compose said functions.

I switched over to using the plan9 rc[1] for my scripts years ago and never looked back.

[0] https://learn.microsoft.com/en-us/powershell/scripting/insta... [1] http://doc.cat-v.org/plan_9/4th_edition/papers/rc