systemd-shutdownd.service, systemd-shutdownd.socket, systemd-shutdownd — Scheduled shutdown service
systemd-shutdownd.service
systemd-shutdownd.socket
/usr/lib/systemd/systemd-shutdownd
systemd-shutdownd.service is a system
service that implements scheduled shutdowns, as exposed by
shutdown(8).
systemd-shutdownd.service is automatically
activated on request and terminates itself when it is
unused.