Skip site navigation (1)Skip section navigation (2)

FreeBSD Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help
COMSAT(8)		FreeBSD	System Manager's Manual		     COMSAT(8)

NAME
     comsat -- biff server

SYNOPSIS
     comsat

DESCRIPTION
     Comsat is the server process which	receives reports of incoming mail and
     notifies users if they have requested this	service.  Comsat receives mes-
     sages on a	datagram port associated with the ``biff'' service specifica-
     tion (see services(5) and inetd(8)).  The one line	messages are of	the
     form:

	   user@mailbox-offset[:mailbox-name]

     If	the user specified is logged in	to the system and the associated ter-
     minal has the owner execute bit turned on (by a ``biff y''), the offset
     is	used as	a seek offset into the appropriate mailbox file	and the	first
     7 lines or	560 characters of the message are printed on the user's	termi-
     nal.  Lines which appear to be part of the	message	header other than the
     ``From'', ``To'', ``Date'', or ``Subject''	lines are not included in the
     displayed message.

     If	the user specified is logged in	to the system and the associated ter-
     minal has the group execute bit turned on (by a ``biff b''), two bell
     characters	(ASCII \007) are printed on the	user's terminal.

     If	mailbox-name omitted, standard mailbox assumed.

FILES
     /var/run/utmp   to	find out who's logged on and on	what terminals
     /var/mail/user  standard mailbox

SEE ALSO
     biff(1), inetd(8)

BUGS
     The message header	filtering is prone to error.  The density of the
     information presented is near the theoretical minimum.

     Users should be notified of mail which arrives on other machines than the
     one to which they are currently logged in.

     The notification should appear in a separate window so it does not	mess
     up	the screen.

HISTORY
     The comsat	command	appeared in 4.2BSD.

FreeBSD	9.2			August 9, 2002			   FreeBSD 9.2

NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO | BUGS | HISTORY

Want to link to this manual page? Use this URL:
<http://www.freebsd.org/cgi/man.cgi?query=comsat&sektion=8&manpath=FreeBSD+4.7-RELEASE>

home | help