Fish
From James's Wiki
set fish as default shell
chsh -s /usr/bin/fish
on osmc:
make a file with the path statement in it like this:
nano .config/fish/config.fish
and add this path:
set -x PATH $PATH /usr/local/bin /usr/bin /bin /usr/local/games /usr/games /sbin /usr/sbin /usr/osmc/bin /opt/vc/bin
To change the prompt:
fish_config prompt