The Identifier Assignment Job Plugin runs bulk Identifier Assignment for a CO.
This is a core plugin, and so is enabled by default.
This Job can be scheduled using the UI via CO > Configuration > Identifier Assignments > Autogenerate Identifiers For All.
$ ./Console/cake job id_assigner -s --coid co [–-co_person_id pid]
co
: Numeric CO ID to run identifier assignment for.pid
: Numeric CO Person ID to run identifier assignment for.