VMS Help EDIT, /SUM, Qualifiers  *Conan The Librarian (sorry for the slow response - running on an old VAX)

1 - /LISTING

   /LISTING[=file-spec]

   Determines whether a sequence-numbered listing file, showing the
   original and inserted lines and an audit trail, is produced during
   the editing process. If you do not include a file specification,
   the listing file takes the same name as the input file, with a file
   type of LIS. By default, no listing file is produced.

2 - /OUTPUT

   /OUTPUT[=file-spec]

   Specifies the output file to be used in the editing session.  If you
   do not include a file specification, the output file has the same
   name and type as the input file, with a version number one higher
   than the highest existing version.

3 - /HEADER

   /HEADER/OUTPUT=file-spec

   Determines whether the output file is created as a VFC format
   sequential file with the line insert number and audit trail
   information in the record header block (RHB) for the records.

4 - /UPDATE

   /UPDATE[=(update-file-spec[,...])]

   Indicates the file or files containing the editing commands and
   changes to be applied to the input source file.   The default file
   type of these files is UPD.