copy SublimeLinter.sublime-settings.example into your User settings for SublimeLinter (Preferences > Package Settings > SublimeLinter > Settings - User)
change key bindings as desired
open and close SublimeLinter - should work now with the keybinding chosen
sudo apt-get install python-software-properties sudo add-apt-repository ppa:chris-lea/node.js && sudo apt-get update && sudo apt-get install nodejs npm