Close Terminal window from within shell script (Unix)?

Using exit 0 will cleanly terminate the script.

Whether Terminal window stays open is user-configurable. The default is to always stay open. To change this:

Terminal.app > Preferences > Profiles > Shell
    - "When the shell exists:"
        > Close if the shell exited cleanly
    - "Ask before closing:"
        (•) Never
        -- OR --
        (•) Only if there are....

When "Close if shell exited cleanly" is used, the script will close the window if the exit result is 0, which is the default if nothing went wrong.

Since you don't want to delete all Terminal windows, first change the name of your window from "Terminal" to something else:

echo -n -e "\033]0;My Window Name\007"

Then at the end of the script, use:

osascript -e 'tell application "Terminal" to close (every window whose name contains "My Window Name")' &

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.

killall Terminal

Note:

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 Terminal app.