Before you run OPatchAuto, ensure that you set the required environment variables.
OPatchAuto uses the following environment variables:
The ORACLE_HOME environment variable is used to identify the Oracle home you are planning to patch.
The JAVA_HOME environment variable is used to identify the location of the JDK software you will be using to patch your environment.
The PATCH_HOME environment variable is used to identify the location of the patch directory that contains the patches to be applied to the Oracle home.