- ORACLE_HOME – This is the Oracle home location.
- OPATCH_DEBUG – This is the log level that specifies the amount of logging OPatch should perform.
- OPATCH_PLATFORM_ID – This is the unique platform ID.
- PATH – This is the path information.
- OPatch.SKIP_VERIFY_PLATFORM – Allows us to skip verification phase. Using this will not restore Oracle Home if patching fails at verification phase.