DUPDATE

 DUPDATE dist-dir dest-dir   [FORCE][QUIET][NODEL] [DISTFILE distfilename]
 DUPDATE dist-file dest-dir  [FORCE][QUIET][NODEL] [DISTFILE distfilename]

 DUPDATE is a program that creates distributions.  It creates an exact
 duplicate of the source directory tree in the destination with
 modifications according to control files in the tree.  DUPDATE deletes
 files in the destination tree that do not exist in the source and updates
 files from the source into the destination tree that have been modified
 since the last dupdate (or copies them fresh if they do not exist).

 FORCE   - DUPDATE will not ask permission to copy a fresh file

 QUIET   - DUPDATE will not display verbose output

 NODEL   - DUPDATE will not delete files in the destination that do
           not exist in the source.

 DISTFILE file
     - specify alternate control file that 'modifies' the
       dist update, default is .DistFiles

 If a file ".DistFiles" exists in any directory of the source tree,
 updating of the destination is modified according to the file.  This
 is a text file which may specify additional files/directories to add to
 the destination directory (pulled from other random places), files and
 directories NOT to include in the destination tree, or a list of specific
 files to include (where files not listed are not included).

 By using the DISTFILE <file> option you can generate different
 distributions for different purposes all based in the same source tree.
 For example, I have a DISTFILE set to create the registered and
 non-registered DICE distributions and other DISTFILE files (using
 different names) to create the three floppies in the registered
 distribution.

 In the first format, if the ONLY keyword is specified after the first
 file name only these files / sub-directories will be included from this
 directory.  No other files will be copied

 --- DISTFILE FORMAT #1 (this line not included) ---
 file_or_dir_name    ONLY
 file_or_dir_name
 file_or_dir_name
 file_or_dir_name
 file_or_dir_name
 --- END DISTFILE FORMAT #1 (this line not included) ---


 The second format allows files/directories to be made part of the
 destination tree that do not necessarily exist in the current directory.
 Additionally, specific files/directories that do exist in the current
 directory can be excluded.  Any file/dir not explicitly unincluded using
 the 'no' keyword will be copied.

 --- DISTFILE FORMAT #2 (this line not included) ---
 file_or_dir_path
 file_or_dir_path
 file_or_dir_path    no
 file_or_dir_path    no
 file_or_dir_path
 file_or_dir_path
 --- END DISTFILE FORMAT #2 (this line not included) ---