If you download the rhinoTip.zip file, it will contain a single JAR file, js.jar. If you add the JAR file to your class path, you can start the Rhino shell using the command

java org.mozilla.javascript.tools.shell.Main

or if you have Java 2 (JDK 1.2), you can avoid changing your classpath and simply use the command

java -jar js.jar

The shell's interactive mode is a good way to begin exploring Rhino.

Earlier versions of Rhino have two JAR files, js.jar and jstools.jar, and don't support the -jar option. Both JAR files must be added to the class path to start the shell.