Open a shell.

Ensure that your CLASSPATH environment variable contains the base Java runtime package ($JDKHOME/jre/lib/rt.jar for JDK 1.2 or higher).

Change to the JDOHOME directory.

Type 'chmod a+x bin/*'. This will give you execute permissions on all packaged shell scripts.

Type 'source bin/envsetup' (On Windows with Cygwin, type 'source bin/cygsetup'). This will modify your CLASSPATH and PATH environment variables to add in the libraries in JDOHOME/lib and the executables in JDOHOME/bin.

Open JDOHOME/docs/index.html and navigate to the Kodo JDO Tutorial (part III, chapter 1).

Change to the JDOHOME/tutorial directory.

Start the tutorial.