Drop-in override systemd
Patch a unit via drop-in without touching the vendor file; use --full to fork the whole unit
systemctl edit <unit> # writes /etc/systemd/system/<unit>.d/override.conf
more systemd
all 26 commands →
Reload unit files
systemctl daemon-reload
Mask a unit
systemctl mask <unit> && systemctl unmask <unit>
Recursive dependency tree
systemctl list-dependencies <unit> --all
Live memory of a unit
systemctl show -p MainPID,MemoryCurrent,TasksCurrent <unit>
Clear failed state
systemctl reset-failed && systemctl list-units --state=failed