02/28/84  comp_dir_info

Syntax:  comp_dir_info path1 path2 {-control_args}


Function: compares two directory information segments created by
save_dir_info and reports on the differences.


Arguments:
path1
   is the pathname of the old directory information segment.  The
   dir_info suffix need not be given.
path2
   is the pathname of the new directory information segment.  The
   dir_info suffix need not be given.


Control arguments:
-brief, -bf
   compares and prints minimum information (see "Notes.")
-verbose, -vb
   compares and prints almost all information.  (Default)
-long, -lg
   compares and prints all information.


Notes: Output is written on user_output.  Unless -brief is specified,
output is preceded by a formfeed character and a header identifying
the directories to be compared and the times that information was
saved by save_dir_info.  If no changes are found according to the
specified control arguments, the string "Identical." is printed.

Output is in three sections--
   modified entries
   deleted entries
   added entries
and is identified by entry type (dir, seg, or link) and entryname.


For deletions and additions a heading is printed of the form
   deleted: type entryname
followed by a listing of the attributes of the deleted or added entry
   item_name: value

For segments that have been modified a heading is printed of the form
   modified: type entryname
followed by either of the following:
   item_name changed from value1 to value2
   item_name added: value


The -brief, -verbose and -long control arguments print increasing
amounts of information.  In the list below, each control argument is
assumed to print all the information listed for it.

Segments--
-bf: names, type, date used, date modified
-vb: date branch modified, volume, records used, bit count, bit count
     author, max length, safety switch
-lg: ACL, date dumped, current length, copy switch, tpd switch, ring
     brackets, unique id, author


Directories--
-bf: names, type, date used, date modified, sons volume, master dir
-vb: date branch modified, bit count, records used, quota, date dumped,
     current length, ring brackets, unique id, author, bit count
     author, max length, safety switch
-lg: ACL, initial seg ACL, initial dir ACL

Links--
-bf: names, type, link target
-vb: date link modified
-lg: date link dumped


The following information is checked to decide whether an entry has
been modified:

Segments--
-bf: names, ring brackets, deletion of ACL, truncation
-vb: safety switch, author, bit count author, ACL, date branch
     modified, records used, max length
-lg: date modified, volume, bit count


Directories--
-bf: names, ring brackets, deletion of ACL, sons volume, master dir,
     quota, bit count
-vb: safety switch, author, bit count author, ACL, initial seg ACL, in
     dir ACL
-lg: date branch modified, date modified

Links--
-bf: names, link target
-vb: date link modified


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Historical Background

This edition of the Multics software materials and documentation is provided and donated
to Massachusetts Institute of Technology by Group BULL including BULL HN Information Systems Inc. 
as a contribution to computer science knowledge.  
This donation is made also to give evidence of the common contributions of Massachusetts Institute of Technology,
Bell Laboratories, General Electric, Honeywell Information Systems Inc., Honeywell BULL Inc., Groupe BULL
and BULL HN Information Systems Inc. to the development of this operating system. 
Multics development was initiated by Massachusetts Institute of Technology Project MAC (1963-1970),
renamed the MIT Laboratory for Computer Science and Artificial Intelligence in the mid 1970s, under the leadership
of Professor Fernando Jose Corbato. Users consider that Multics provided the best software architecture 
for managing computer hardware properly and for executing programs. Many subsequent operating systems 
incorporated Multics principles.
Multics was distributed in 1975 to 2000 by Group Bull in Europe , and in the U.S. by Bull HN Information Systems Inc., 
as successor in interest by change in name only to Honeywell Bull Inc. and Honeywell Information Systems Inc. .

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Permission to use, copy, modify, and distribute these programs and their documentation for any purpose and without
fee is hereby granted,provided that the below copyright notice and historical background appear in all copies
and that both the copyright notice and historical background and this permission notice appear in supporting
documentation, and that the names of MIT, HIS, BULL or BULL HN not be used in advertising or publicity pertaining
to distribution of the programs without specific prior written permission.
    Copyright 1972 by Massachusetts Institute of Technology and Honeywell Information Systems Inc.
    Copyright 2006 by BULL HN Information Systems Inc.
    Copyright 2006 by Bull SAS
    All Rights Reserved