kazulog@sv1:~$ sudo shutdown -c
kazulog@sv1:~$ sudo systemctl list-jobs | head -3
No jobs running.
kazulog@sv1:~$ ls -l /var/run/reboot-required 2>&1
-rw-r--r-- 1 root root 32 Sep 10 16:37 /var/run/reboot-required
kazulog@sv1:~$ apt list --upgradable 2>/dev/null | wc -l
1