Clear failed state systemd
Reset failed counters so units can restart past StartLimitBurst, then list what is still failed
systemctl reset-failed && systemctl list-units --state=failed
more systemd
all 26 commands →
Transient one-shot timer
systemd-run --on-calendar='*-*-* 03:00:00' --unit=backup /usr/local/bin/backup.sh
Runtime resource cap
systemctl set-property --runtime <unit> MemoryMax=512M CPUQuota=50%
Pending jobs queue
systemctl list-jobs
Enable and start service
systemctl enable --now myapp.service
Show failed units
systemctl list-units --state=failed