Ubuntu 18.04.6 LTSもいっとこ
$ sudo apt update && apt list --upgradable
：
sudo/bionic-updates,bionic-security 1.8.21p2-3ubuntu1.5 amd64 [upgradable from: 1.8.21p2-3ubuntu1.4]
update-notifier-common/bionic-updates,bionic-updates 3.192.1.15 all [upgradable from: 3.192.1.12]
$ sudo apt dist-upgrade -y
$ cat /var/run/reboot-required*
cat: '/var/run/reboot-required*': No such file or directory
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