[Unit] Description=Run my custom task at shutdown only DefaultDependencies=no Before=poweroff.target halt.target shutdown.target reboot.target Requires=poweroff.target [Service] Type=oneshot ExecStartPre=systemctl stop lcd_control.service ExecStart=/usr/bin/python3 /usr/bin/lcd_control_restart.py RemainAfterExit=yes [Install] WantedBy=shutdown.target