list our of all OPatch commands in oracle.?

OPatch is a utility provided by Oracle for applying patches to Oracle software installations. Here's a list of commonly used OPatch commands:

1. opatch apply: Apply a patch to the Oracle software installation.
2. opatch lsinventory: List all patches applied to the Oracle software installation.
3. opatch prereq: Check if the system meets the prerequisites for applying a patch.
4. opatch rollback: Roll back a patch from the Oracle software installation.
5. opatch version: Display the version of the OPatch utility.
6. opatch lspatches: List all patches applied to the Oracle software installation.
7. opatch query: Query information about a specific patch.
8. opatch util: Utility to perform various tasks related to OPatch.
9. opatch auto: Apply patches in an automated mode.
10. opatch datapatch: Apply SQL changes required by a patch.
11. opatch validate: Validate the Oracle home and patch inventory.
12. opatch napply: Apply patches non-interactively.
13. opatch nrollback: Roll back patches non-interactively.
14. opatch nquery: Query patch information non-interactively.

These are some of the commonly used OPatch commands. Depending on your specific requirements and the version of OPatch you are using, there may be additional commands or options available. You can refer to the OPatch documentation provided by Oracle for comprehensive information on all available commands and their usage.