Install Oracle 11.2.0.3 /usr/local/oraInvetory

mkdir -p /usr/local/oracle /usr/local/oraInventory   /usr/local/oradata/

chown -R oracle:oinstall /usr/local/oracle /usr/local/oraInventory   /usr/local/oradata/

chmod -R 775 /usr/local/oracle 

chmod -R 775   /usr/local/oraInventory 

chmod -R 775   /usr/local/oradata/