Fish functions I find usefull in OS X.
todo.fish -> Creates a function to load todotxt.com. Thise use an absolute path to the config file so that will need to be changed. wlan_scan.fish -> Uses Airports wlan scanning function to list networks. wlan_disconnect.fish -> Disconnects running wlan connections (uses sudo). treeview.fish -> Creates a treeview from current location.
Installation:
Just copy the fish functions you are intrested of to your ~/.config/fish/functions For todo.fish setup todo-txt and make sure you have the correct link.
Hack and enjoy. Virre.