the commands are unreleased so not really supported:
blcli_execute Job findAllHeadersByType 50002
blcli_execute SJobHeader getName
blcli_execute Utility setTargetObject
blcli_execute Utility listPrint
50002 = Virtual Guest job
If you want to get the integer value of other job types (or other objects), you can get it running this sql:
select * from object_type where name like '%Job%'
Many thanks Lazar.
This is exactly what I was looking for.
Have a nice day.