I'm kinda preferring bash lately to fish, and I'm wondering if I can change it back. I tried this command: chsh -s /bin/bash
but closing the terminal and reopening it does not restore it to bash, but it's still fish.
In fact, how do I remove fish?
Go to System Preferences, Users & Groups, click the lock to make changes, right click (or Control click) on your username, choose "Advanced Options" and you should have a field to change your shell. Change it there, reboot, and your new shell should take effect.