1. Use the OUI and uninstall products. This is done by selecting Deinstall Products and Oracle Homes -- OraHome92 -- [x] Oracle9i Database
Then select the [Remove] button.
2. Run the script below (change as your environment requires):
# Confirm clear echo "Purge All Oracle Files and Directories" echo "" echo "About to purge all Oracle directories and files from this system." echo "Press Ctr-C to abort or Enter to continue" echo "" echo "IMPORTANT: Make sure you have uninstalled Oracle using Oracle installer before running!" read pause