finish my sentence
[unix-history] / usr / src / libexec / comsat / comsat.8
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1.\" Copyright (c) 1983 Regents of the University of California.
2.\" All rights reserved. The Berkeley software License Agreement
3.\" specifies the terms and conditions for redistribution.
4.\"
fb3f6c73 5.\" @(#)comsat.8 6.1 (Berkeley) %G%
05d45a21 6.\"
fb3f6c73 7.TH COMSAT 8C ""
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KM
8.UC 5
9.SH NAME
10comsat \- biff server
11.SH SYNOPSIS
12.B /etc/comsat
13.SH DESCRIPTION
14.I Comsat
15is the server process which listens for reports of incoming mail
16and notifies users if they have requested this service.
17.I Comsat
18listens on a datagram port associated with the ``biff'' service
19specification (see
20.IR services (5))
21for one line messages of the form
22.PP
23.ti +0.5i
24user@mailbox-offset
25.PP
26If the
27.I user
28specified is logged in to the system and the associated terminal has
29the owner execute bit turned on (by a ``biff y''), the
30.I offset
31is used as a seek offset into the appropriate mailbox file and
32the first 7 lines or 560 characters of the message are printed
33on the user's terminal. Lines which appear to be part of
34the message header other than the ``From'', ``To'', ``Date'',
35or ``Subject'' lines are not included in the displayed message.
36.SH FILES
37.DT
38/etc/utmp to find out who's logged on and on what terminals
39.SH "SEE ALSO"
40biff(1)
41.SH BUGS
42The message header filtering is prone to error.
43.PP
44Users should be notified of mail which arrives on other
45machines than the one they are currently logged in to.
46.PP
47The notification should appear in a separate window so it
48does not mess up the screen.