If you have ever had problems running commands as other users in Ubuntu, this might be helpful.

fix.md

Executing a command as another user

Now the command to run commands as another user is simply:

su [user] -c [command]

but I couldn't get that to work for me, atleast until I installed the following package:

sudo apt-get install dbus-x11

now if you run the command from before again (su [user] -c [command]), it should work like intended. But if it doesn't, run the following:

sudo apt-get install dbus*