Use UPDATE to apply a patch to the image file.

The UPDATE command is a patch terminator.  This  command  applies
the  previous patch to the image file and creates an output image
file.  If you fail to issue the UPDATE command, no  output  image
file is created.

During a single execution of PATCH, you can  specify  the  UPDATE
command  more  than  once.   The  first  UPDATE command specified
creates a new output  image  file.   Subsequent  UPDATE  commands
(specified  during that PATCH session) overwrite the output image
file.  That is, a new version of the output  image  file  is  not
created.

If a SET ECO command  is  issued,  a  subsequent  UPDATE  command
automatically sets the ECO level specified.

Format:

     UPDATE