Could someone please tell me how to insert a terminal command into an "application" so when the app is clicked/opened the command is launched?
Instead of an application, you could always try writing a bash script.
To write and run a bash script, there are a few things to do:
Open TextEdit from
press shiftcommandt (⇧⌘T) to convert it into a plain text document.
Insert a shebang as the first line:
Add your command below it. In the end, your script should look like:
<your command here>
Then save the script.
In Terminal, do
chmod 775 /path/to/your/script
To run your script, either click on the file (which should now have an executable icon).