1 .\" Copyright (c) 1983, 1990, 1993
2 .\" The Regents of the University of California. All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
8 .\" notice, this list of conditions and the following disclaimer.
9 .\" 2. Redistributions in binary form must reproduce the above copyright
10 .\" notice, this list of conditions and the following disclaimer in the
11 .\" documentation and/or other materials provided with the distribution.
12 .\" 3. Neither the name of the University nor the names of its contributors
13 .\" may be used to endorse or promote products derived from this software
14 .\" without specific prior written permission.
16 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 .\" @(#)talk.1 8.1 (Berkeley) 6/6/93
35 .Nd talk to another user
43 utility is a visual communication program which copies lines from your
44 terminal to that of another user.
47 .Bl -tag -width ttyname
49 If you wish to talk to someone on your own machine, then
51 is just the person's login name.
52 If you wish to talk to a user on
62 If you wish to talk to a user who is logged in more than once, the
64 argument may be used to indicate the appropriate terminal
74 .Bd -literal -offset indent -compact
75 Message from TalkDaemon@his_machine...
76 talk: connection requested by your_name@your_machine.
77 talk: respond with: talk your_name@your_machine
80 to the user you wish to talk to.
81 At this point, the recipient
82 of the message should reply by typing
84 .Dl talk \ your_name@your_machine
86 It does not matter from which machine the recipient replies, as
87 long as his login-name is the same.
88 Once communication is established,
89 the two parties may type simultaneously, with their output appearing
93 will cause the screen to
97 will clear both parts of your screen to be cleared, while
98 the control-D character will be sent to the remote side
99 (and just displayed by this
102 Your erase, kill, and word kill characters will
104 To exit, just type your interrupt character;
106 then moves the cursor to the bottom of the screen and restores the
107 terminal to its previous state.
109 Permission to talk may be denied or granted by use of the
112 At the outset talking is allowed.
114 .Bl -tag -width /var/run/utx.active -compact
116 to find the recipient's machine
117 .It Pa /var/run/utx.active
118 to find the recipient's tty
135 the default behaviour of
137 was changed to treat local-to-local talk requests as originating
140 Before this change, it was required that the hostname (as per
142 resolved to a valid IPv4 address (via
143 .Xr gethostbyname 3 ) ,
146 unsuitable for use in configurations where
148 was bound to the loopback interface (normally for security reasons).
155 is incompatible with the protocol used in the version released with
158 Multibyte characters are not recognized.