Comment by dieggsy

Seriously. I do think people should spend enough time with bash or posix sh to be comfortable with it, but I'd recommend everyone at least just try fish. It's a lovely interactive experience out of the box with colors, completions, a great prompt, etc. Plus, the scripting language is quite comfy. Like, somewhere between bash and Python (if you find Python comfy, I guess). At least to me it makes more intuitive sense, once I got over the fact that "it's not bash/zsh."

It's written in Rust, if you care about that sort of thing (I switched before that was a thing). And for simple one-liners, compatibility actually has improved at least a bit (like you can do && now, which wasn't a thing before).

Write your shell-specific helper scripts or personal scripts in fish, write your portable scripts in Python or Bash. Look, I love standards. Sometimes non-standard things make sense though. Sometimes they even make more sense in the right context.

Or maybe you'll hate it. That's fine. People won't know until they try though.

For something newer and even more different, check out nushell. I don't have much experience with it, but a lot of its ideas are enticing.