Installing addons via SSH

Hi, I have a couple of ATV2s that I wanted to install addons to. However, I didn't want to have to plug each one to the TV and go through all the menus to install all the addons I wanted on each one. Is it possible to have the addons installed using SSH.... not just moving the zip files over, but having them installed and ready to go?

I hope you guys can understand what I am trying to say. Let me know if you need more information or more explanation.

~Thanks