I was wondering how one could change Jenkins\' default port 8080. Using linux or windows, this is simply done with the configuration file. But the Mac config file of Jenkins
This worked for me for changing port to 7070 or other.
sudo defaults write /Library/Preferences/org.jenkins-ci httpPort 7070 sudo launchctl unload /Library/LaunchDaemons/org.jenkins-ci.plist sudo launchctl load /Library/LaunchDaemons/org.jenkins-ci.plist
More info about this