Need to find jobid triggered by bpduplicate command

Hi Specialists,

 I need to build a script for manually duplicating backupid's from tapes to disk based storage unit. Now My plan is to find out backupid's through bpimmedia for set of media's and use bpduplicate to duplicate those backupid's to a storage unit. Now next step would be to check if the duplication job triggered by the bpduplicate complete or not, If it completed I need to expire those media's so they become scratch and I have the duplicated image promoted to as primary image. I was thinking of how to find out the jobid triggered by bpduplicate command in order to track what happened to it.

Thanks

Sid