A JAR file is an archive file but is more than a file compression format. Here's how to open, run, or execute JAR files.

How do you run a JAR file on Windows, Mac or Linux? Double click the JAR? Run the JAR at the command line? Several approaches will work if you have Java or the JDK installed.

If you're tired of having to jump through hoops to open files with sudo privileges in the GNOME File Manager, Jack Wallen has just the trick you need.