Some instructions here: http://ridiculousfish.com/shell/user_doc/html/index.html#completion http://ridiculousfish.com/shell/user_doc/html/index.html#com... You

Some instructions here: http://ridiculousfish.com/shell/user_doc/html/index.html#completion http://ridiculousfish.com/shell/user_doc/html/index.html#com... You can put this stuff in your ~/.config/fish/config.fish . There's a useful set of completions and utilities at https://github.com/zmalltalker/fish-nuggets https://github.com/zmalltalker/fish-nuggets with a variety of forks that add and remove various things. If nothing else, it's a pretty solid starting point.