How to Stop Jenkins on Mac OSX localhost

If you need to stop Jenkins on your Mac OSX do execute this command in your Terminal:

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

If in case you want to again have your jenkins started.. just use the reverse of the above

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

See more references on this topic here.