Hi

I have found the answer I hope I have not missed out anything .

To delete or remove EVERY Oracle 8i/9i applications installed with the OUI from
a Unix machine, remove the following: * ORACLE_HOME directory: cd $ORACLE_HOME
rm -rf *
Repeat for every $ORACLE_HOME on the server
* remove the oraInventory directory:
the location of the inventory directory is listed in "/var/opt/oracle/oraInst.loc"
or in "/etc/oraInst.loc" cd rm -rf *
* remove the oraInst.loc file rm /var/opt/oracle/oraInst.loc or
rm etc/oraInst.loc * remove the oratab file:
rm /var/opt/oracle/oratab or
rm /etc/oratab

Anything more I should Do ????????