How to delete archived log files past one week in RMAN

[Sameer]

From the docs, this might help you

Specifying Records by Time: Example This example backs up all logs that could be used to recover to a point one week ago, and then deletes all archived redo logs that were created more than two weeks ago:

BACKUP ARCHIVELOG UNTIL TIME 'SYSDATE-7';
DELETE COPY OF ARCHIVELOG ALL COMPLETED BEFORE 'SYSDATE-14';