load/unload postgres (via ports) launch deamon
launchctl load -w /opt/local/etc/LaunchDaemons/org.darwinports.postgresql81-server/org.darwinports.postgresql81-server.plist launchctl unload -w /opt/local/etc/LaunchDaemons/org.darwinports.postgresql81-server/org.darwinports.postgresql81-server.plist