systemctl-reenable
Re-enable one or more units. tldr-pages
On Linux
Linux
Re-enable one or more units. Used when targets of a service change.
Re-enable a unit, restoring its default symlinks
systemctl reenable unitIdentifyRe-enable multiple units at once
systemctl reenable unit1 unit2 ...IdentifyRe-enable a unit and start it immediately
systemctl reenable unit --nowIdentify