Make a .sh file run at startup

I'm runnning Ubuntu 14.10 for clarification

I saw a thread recently that showed a script that runs at startup.

I made my own version:

#!/bin/bashwmctrl -n 4chromium-browser &skype &conky-manager &clementine &covergloobus &steam &sleep 15wmctrl -r chromium-browser -t 0wmctrl -r skype -t 1wmctrl -r conky-manager -t 0wmctrl -r clementine -t 0wmctrl -r covergloobus -t 0wmctrl -r steam -t 1#focus on the covergloobus so can setup.wmctrl -a covergloobus

Then I added this .sh file to the startup manager: Imgur link

My question is how to get it to execute, as it seems to not :(