Create keyboard shortcut in Arch Linux

I'm new to Arch Linux and recently installed it with GNOME as a desktop environment. I can run the gnome terminal by clicking the icon, but I would like to set up a shortcut. I want to set up the shortcut like in Ubuntu, Ctrl+Alt+T. One can add a shortcut through **Settings>Keyboard>View and Customise Shortcuts**. It asks for a command. What would that command be? I'm trying to get it to open up at /home. Does anyone have any suggestions or can point me in the right direction?