I'm running Zorin OS 15.3 (I think) Education Lite. The file manager is Thunar. I wrote a very simple script to more simply install deb files. It works in the terminal when I pass the file's name/path to it directly, but I want to be able to do it from the file manager. In other words, I want to use the "Use a custom command" option in the "Open With Other Application..." menu to run my script with the file's name as the argument.