Updating Pastebin Codes

How can i make my turtle check to see if my pastebin code has been updated? I recently started using pastebin because i am using 81 melee turtles for a farm, and i dont particularly want to edit each turtle individually.

Split into new topic.

To see if the code had changed, you'd have to download the code anyway, at which point you may as well just overwrite the existing code each time.