We do this all the time.  The script is called migrate_check as follows:

select * from processes where process="Migration"
if(rc_ok) goto resch
delete schedule migrate_check t=a
expire inv
exit
resch:
delete schedule migrate_check t=a
define schedule migrate_check t=a cmd='run migrate_check' -
    startt=now+0:10 dur=15 per=1 peru=h active=yes

Hope that helps


--
Phillip Ford
Phillip Ford
Senior Software Specialist
Corporate Computer Center
Schering-Plough Corp.
(901) 320-4462
(901) 320-4856 FAX
phillip.ford AT spcorp DOT com