PATCH

   Uninstalls patches or mandatory updates from your system. This
   command uses the recovery data sets that were created by the
   PRODUCT INSTALL command when these patches were installed. The
   associated recovery data sets are deleted at the conclusion of
   the operation.

   Format

     PRODUCT UNDO PATCH  [/qualifiers]
 

Additional information available:

Description     Parameters      Qualifiers
/ALL            /LOG            /NEWEST         /OPTIONS        /REMOTE
/SINCE          /TRACE
Example