Reset OEM "sysman" Password

OMS password cocould by reset by running a scripts.

How can I reset the sysman password if I forgot it?

To reset the password of sysman to the default oem_temp, you will need
Log on to SQL * Plus worksheet as the OEM repository ower. Then issue
Following:

Update smp_vdu_principals_table
Set Password = 'e5a264514813c63f09d3a127712e2ae229a8cf88724ff226'
Where upper (principal_name) = 'sysmance ';

A script called vduresetsysman. SQL, has been added to the oemv2
Installation, which contains this command. This script resides in
"$ ORACLE_HOME/sysman/admin" directory.