Bootout

sudo launchctl bootout gui/$(id -u <username>)

See also

• launchctl, launchctl unload, launchctl load, launchctl list, launchctl start, launchctl stop, /System/Library/LaunchDaemons/, launchctl stop com.openssh.sshd, launchctl bootout, /System/Library/LaunchDaemons/ssh.plist