A much cleaner way of installing knowledgetree on ubuntu is to symlink the /opt/ktdms/dmsctl.sh to /etc/init.d/

 here is what I did

 ln -s /opt/ktdms/dmsctl.sh /etc/init.d/ktdms 

 update-rc.d ktdms defaults 

 doing this would add ktdms to my ini.t startup scripts and it makes it very easy to start the process by just doing sudo /etc/init.d/ktdms start or sudo /etc/init.d/ktdms stop  if I want to stop it. It also allow the ktdms to bootup with my system. I find this much cleaner compared to adding it to cron