title: Python syntax to open gnome-terminal and execute multiple commands
body: <p>I am developing a Auto install x2go script in Python (for ubuntu/linux especially)
  i'v come to where i got an gnome terminal open with the command 
  <code>os.system("gnome-terminal -e 'bash -c \"sudo apt-get update -y ; exec bash\"'")</code></p>
  
  <p>it works fine, but now comes my problem. 
  i have to execute more than the one command in the same terminal window, but i cant figure out how to split or define two commands in the same line.
  i have tried <code>--tab -e [command]</code> but it doesn't seem to work with my previous syntax 
  <code>os.system("gnome-terminal -e 'bash -c \"sudo add-apt-repository ppa:x2go/ppa --tab -e sudo apt-get update ; exec bash\"'")</code>  </p>
  
  <p>i would be glad if i could get some help with this :)</p>
  
  <p>Best Regards</p>