Setting up Jenkins on Mac OS X

I've found this useful information for Mac OS X

To change Jenkins Default port

$ sudo defaults write /Library/Preferences/org.jenkins-ci httpPort '9999' 

To stop the service

$ sudo launchctl unload /Library/LaunchDaemons/org.jenkins-ci.plist 

To start the service

$ sudo launchctl load /Library/LaunchDaemons/org.jenkins-ci.plist