How to completely delete a single Oracle database under RHEL5

1. Shut down the database

[Oracle @ RHEL5] $ sqlplus/as sysdba

SQL> shutdown immediate;

Ii. Disable listening

[Oracle @ RHEL5] $ lsnrctl stop

3. Delete oracle_base

I switched to root here.

[Root @ RHEL5] # rm-rf/s01

3. Clear residual files

[Root @ RHEL5] # rm-f/usr/local/bin/dbhome

[Root @ RHEL5] # rm-f/usr/local/bin/oraenv

[Root @ RHEL5] # rm-f/usr/local/bin/coraenv

[Root @ RHEL5] # rm-f/etc/oratab

[Root @ RHEL5] # rm-f/etc/oraInst. loc

4. delete users and groups (if you want to recreate a group, do not delete the group, saving you the trouble of getting variables again)

[Root @ RHEL5] # userdel-r oracle

[Root @ RHEL5] # groupdel oinstall

[Root @ RHEL5] # groupdel dba