02/28/85 tty_lines

Syntax as a command:  tty_lines {arg}


Function:  prints information about communications channels defined in
the channel definition table (CDT).  An optional argument can be used
to print information about a subset of channels.


Arguments:
id STR
   prints information about channels on which the terminal most
   recently dialed up has an identification code specified by STR.  The
   string STR is four characters long.
dlN
   prints information about each channel that has been dialed up N
   times or more.
d=N
   prints information about each channel that has been dialed up
   exactly N times.
stN
   prints information about each channel whose current state code is N
   (see "Notes" below).


acN
   prints information about each channel whose activity code is N (see
   "Notes" below).
slN
   prints information about the Nth entry in the CDT.
-type STR
   prints information about each channel on which the most recently
   dialed terminal was of the terminal type specified by STR.


Notes:  If the tty_lines command is given with no argument, it prints
information about all channels in the CDT.  For each channel, a line is
printed in the following format.

   NAME   TYPE        D S  W A  BAUD Person_id Project_id (ID) C

NAME
   is the channel name, e.g., a.l006.
TYPE
   is the terminal type that has most recently dialed the channel, or
   NU if the channel has not been used.
D
   is the number of times the channel has been dialed up.


S
   is the current state of the channel.  It may have one of the
   following values.

         1   hung up
         2   listening (ready for dialup)
         5   dialed

W
   is an internal variable indicating what the answering service
   expects to happen next to the channel.


A
   is the activity code for the channel.  It may have one of the
   following values:

         1   hung up
         2   listening (ready for dialup)
         3   dialed up but not logged in
         4   user is logged in but process not yet created
         5   user process has channel
         6   auto_call line is in process of dialing out
         7   auto_call line is in use (dial complete)

BAUD
   is the baud rate of the channel


Person_id
   is the Person_id of the current user of the channel.  If A is not 4
   or 5, this field is omitted.
Project_id
   is the Project_id of the current user of the channel.  If A is not 4
   or 5, this field is omitted.
ID
   is the identification of the terminal currently using the channel.
   If S is not 5, this field is omitted.
C
   is the comment field from the CDT entry.


                                          -----------------------------------------------------------


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. .

                                          -----------------------------------------------------------

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