3 systemctl start will-fail.service
4 systemctl start will-fail2.service
5 systemctl start will-not-fail.service
6 systemctl start will-not-fail2.service
7 systemctl is-failed will-fail.service || exit 1
8 systemctl is-failed will-fail2.service || exit 1
9 systemctl is-failed will-not-fail.service && exit 1
10 systemctl is-failed will-not-fail2.service && exit 1