I'm using Ubuntu 18, and all the information I've found on web searches is outdated.
I have files with a .p4r extension that I want to associate to a non-GUI application. These files are actually .zip files in disguise, but I don't want them to opened via the Archive Manager.
How do I get Nautilus (the file manager used in Ubuntu 18) to associate a .p4r file with a specific non-GUI app. Because it's not a GUI app, it does not appear in the "Open With" dialog box.