You can use
apple script to quit the
terminal app. Add the following to your script -
osascript -e 'tell application "Terminal" to quit'
This will give you a popup confirming to close the app. You can disable this in Terminal preferences.
Alternatively, you can also use
killall command to quit the app. The following would work just as well.
Just as a side note, you can freely add the above commands to your script and it would work as you want. However, there are few caveats. First being you will limit the ability of your script to work on different boxes. Secondly, it would be safer to use
nohup so that any commands that are currently running won't quit due to quitting of the