Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//usr/lib/update-notifier/update-motd-reboot-required

 #!/bin/sh -e
#
# helper for update-motd

if [ -f /var/run/reboot-required ]; then
	cat /var/run/reboot-required
fi