fish has been GPLv2 since well before ridiculousfish took over as the maintainer; changing to GPLv3 is not something we have the appetite or energy for!
Ahh right, tcsh! Thanks for reminding me. I think being so lost at the tcsh prompt is what first prompted me to start learning other shells and ended up with Zsh for a long awhile.
Also, I had no idea the fish dev worked at Apple. I have no hopes of them going with that as a default, but I could certainly see them shipping it as part of the os...
fish should be the default shell on macOS, possibly with a cool custom theme. then again it might turn off some of the hardcore bearded UNIX people who use it.
On second thought this might lose them SUS certification so perhaps they shouldn't do this. I just think macOS is a friendly OS and fish is a lot friendlier than bash or even zsh out of the box (it's even right there in the name!).
Edit: to clarify, any shell script that is executed will define its own shell to execute with (the #! line).
There may be some issues if scripts have declared their shell as /bin/sh but they use bashisms, and then /bin/sh isn't provided by bash anymore, but honestly that's not necessarily related.
The discussion here is about changing the default login shell for interactive user accounts to fish.
If they did this though, it would be nice if they would use dash for /bin/sh, but I'm not sure how that's licenced - possibly gpl3 too?
