CPD
                           Version 1.0

                          Gene Pizzetta
                         August 10, 1991


A ZCPR3 utility to compare two directories and indicate which 
files exist in both directories and which exist only in the first 
directory.  It also allows setting the archive attribute on those 
files which exist in both directories, facilitating copying those 
that do not.

USAGE:

     CPD {dir:}{afn} {dir:} {{/}options}

If no DU or DIR is given, the current default is assumed.  If no 
filename is given, all files ("*.*") is assumed.  To make the 
the first directory the current directory, only a colon or a 
period need be entered for the first token.

If no option is given, all matching non-system files in the first 
directory are displayed with files marked which also exist on the 
second directory.  These duplicated files will be marked by both 
an asterisk following the filename and by dim or reverse video 
(the standout string installed in the TCAP).  The asterisk allows 
visible markings in printer output or for TCAP's with no standout 
string installed.

The file display can be aborted at any time with ^C.

OPTIONS:  A slash is not required if the option list is the third 
parameter on the command line.

     B    Display only files that exist in both directories, that 
          is, display only marked files.  Since option M is 
          incompatible, choosing this option cancels option M.

     M    Display only files in the first directory that are 
          missing from, that is, do not exist in the second 
          directory.  Since option B is incompatible, choosing 
          this option cancels option B.

     A    Set the archive attribute of matching files in the 
          first directory that also exist in the second directory 
          (marked files).  This allows copying the files with a 
          copy program that recognizes archived files, such as 
          COPY, PIP, ACOPY, etc.  CPD does not remove archive 
          attributes on other files, so they should first be 
          reset with a program such as DA or FA before calling 
          CPD.

     S    Include system (hidden) files.  By default CPD ignores 
          system files in the first directory, but duplicate 
          files in the second directory, including system files, 
          are always found.

     P    Do not page screen display.  By default CPD waits for a 
          key to be pressed after each screenful of filenames.

     L    Echo the screen display to the printer.  Printer output 
          is continuous (no paged).  This option also suppresses 
          screen paging.

     F    Send a final form feed to the printer after the display 
          is completed.  This option has no effect unless option 
          L is also active.

All options except L can be made the default mode by using ZCNFG 
and the accompanying CPDxx.CFG file.  In that case the command 
line option will toggle the option to the non-default mode.  Do 
not set both options B and M as defaults.  You will not like the 
result.

It is best not to change the name of the CFG file, so that ZCNFG 
will always be able to find it, even if you change the name of 
CPD.

HISTORY:

Version 1.0 -- August 4, 1991 -- Gene Pizzetta
     The idea (but not the code) came from CDIR 2.0 by Robert 
     Wilcox and Richard Brewster.  This program could be a lot 
     faster if both directories were loaded into memory first, 
     but it does the job.  Next time . . .

Please report any bugs or make suggestions to:

     Gene Pizzetta
     481 Revere St.
     Revere, MA 02151

     Voice:  (617) 284-0891
     Newton Centre Z-Node:  (617) 965-7259
     Ladera Z-Node Central:  (213) 670-9465