🐧 ubuntu, centos - OSに再起動が必要か確認する reboot-required, needs-restarting

ubuntu

$ sudo apt update && sudo apt -y install update-notifier-common

$ if -f /var/run/reboot-required ; then echo "Reboot is required.";else echo "Reboot is not required.";fi

centos

$ needs-restarting -r