Mark Wagner's Oracle on Linux Site

su – root

# For 10g
export ORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1

# For 11g
export ORACLE_HOME=/u01/app/oracle/product/11.1.0/db_1

. $ORACLE_HOME/bin/localconfig delete
# stops the Oracle CSS daemon and deletes configuration
rm -rf /u01/app/oracle/*

rm -rf /u01/app/oraInventory
rm -f /etc/oraInst.loc /etc/oratab
rm -rf /etc/oracle
rm -f /etc/inittab.cssd
rm -f /usr/local/bin/coraenv /usr/local/bin/dbhome /usr/local/bin/oraenv