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

//etc/cron.weekly/update-notifier-common

 #!/bin/sh

set -e

[ -x /usr/lib/ubuntu-release-upgrader/release-upgrade-motd ] || exit 0

sleep_then_check() {
    # Sleep for up to an hour to spread the load of checking for updates on
    # the Ubuntu infrastructure
    sleep $(shuf -i 1-3600 -n 1)
    # Check to see whether there is a new version of Ubuntu available
    /usr/lib/ubuntu-release-upgrader/release-upgrade-motd
}

sleep_then_check &