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• Here is an example codes on how to run script from an .sh file without closing the terminal.

#!/bin/bash

echo "hello world"

$SHELL

• The $SHELL is important because it prevent the terminal to be closed after the operation ends. This command keeps the opened terminal open.
• I got this information from, http://askubuntu.com/questions/20330/how-to-run-a-script-without-closing-the-terminal.