I'd just like to second this. Though bear in mind that many things assume you're running bash on OS X, e.g. the homebrew installation one-liner doesn't work wit

I'd just like to second this. Though bear in mind that many things assume you're running bash on OS X, e.g. the homebrew installation one-liner doesn't work with fish. Also, note that you can easily copy across your bash settings using: /usr/local/share/fish/tools/import_bash_settings.py < ~/.bashrc (from http://ridiculousfish.com/shell/faq.html http://ridiculousfish.com/shell/faq.html )