Find Current CPU or PSU Applied

mylx1:product/11.1.0/OPatch/ $ ./opatch lsinv -bugs_fixed | grep -i 'database psu'
8833297 9352179 Mon Sep 13 22:00:34 EDT 2010 DATABASE PSU 11.1.0.7.1 (INCLUDES CPUOCT2009)
9209238 9352179 Mon Sep 13 22:00:34 EDT 2010 DATABASE PSU 11.1.0.7.2 (INCLUDES CPUJAN2010)
9352179 9352179 Mon Sep 13 22:00:34 EDT 2010 DATABASE PSU 11.1.0.7.3 (INCLUDES CPUAPR2010)
mylx1:product/11.1.0/OPatch/ $

REM This script outputs the current CPU applied on the database.column action format a15
column action_time format a30
column comments format a35
column action format a20
set linesize 300

select comments,action_time,action
from
(select action,action_time,comments
from sys.registry$history
where action in ('CPU','APPLY')
order by action_time desc)
where comments <> 'view recompilation'
and rownum < 2
/
-- Output from above script --
COMMENTS ACTION_TIME ACTION
----------------------------------- ------------------------------ --------------------
PSU 11.1.0.7.3 09-AUG-10 09.14.20.562314 AM APPLY