Use shebangs the recommended way.

[ericonr]

You should probably use the shebang (that first line on the file, which tells the operating system how to execute the file) as

#!/usr/bin/env bash

This way, anyone who uses your script but for some reason stores their preferred version of bash somewhere else, can still run it with their preferred version.

[ericonr]

All that said, awesome project!

[longhorn09]

And maybe rename terminalscript to terminalscript.sh is kind of standard, to denote shell script.