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-.\" Copyright (c) 1983, 1990, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"     @(#)talk.1	8.1 (Berkeley) 6/6/93
-.\"
-.Dd June 6, 1993
-.Dt TALK 1
-.Os BSD 4.2
-.Sh NAME
-.Nm talk
-.Nd talk to another user
-.Sh SYNOPSIS
-.Nm talk
-.Ar person
-.Op Ar ttyname
-.Sh DESCRIPTION
-.Nm Talk
-is a visual communication program which copies lines from your
-terminal to that of another user.
-.Pp
-Options available:
-.Bl -tag -width ttyname
-.It Ar person
-If you wish to talk to someone on your own machine, then
-.Ar person
-is just the person's login name.  If you wish to talk to a user on
-another host, then
-.Ar person
-is of the form
-.Ql user@host .
-.It Ar ttyname
-If you wish to talk to a user who is logged in more than once, the
-.Ar ttyname
-argument may be used to indicate the appropriate terminal
-name, where
-.Ar ttyname
-is of the form
-.Ql ttyXX .
-.El
-.Pp
-When first called,
-.Nm talk
-sends the message
-.Bd -literal -offset indent -compact
-Message from TalkDaemon@his_machine...
-talk: connection requested by your_name@your_machine.
-talk: respond with: talk your_name@your_machine
-.Ed
-.Pp
-to the user you wish to talk to. At this point, the recipient
-of the message should reply by typing
-.Pp
-.Dl talk \ your_name@your_machine
-.Pp
-It doesn't matter from which machine the recipient replies, as
-long as his login-name is the same.  Once communication is established,
-the two parties may type simultaneously, with their output appearing
-in separate windows.  Typing control-L
-.Ql ^L
-will cause the screen to
-be reprinted, while your erase, kill, and word kill characters will
-behave normally.  To exit, just type your interrupt character;
-.Nm talk
-then moves the cursor to the bottom of the screen and restores the
-terminal to its previous state.
-.Pp
-Permission to talk may be denied or granted by use of the
-.Xr mesg 1
-command.  At the outset talking is allowed.  Certain commands, in
-particular
-.Xr nroff 1
-and
-.Xr pr 1 ,
-disallow messages in order to
-prevent messy output.
-.Pp
-.Sh FILES
-.Bl -tag -width /var/run/utmp -compact
-.It Pa /etc/hosts
-to find the recipient's machine
-.It Pa /var/run/utmp
-to find the recipient's tty
-.El
-.Sh SEE ALSO
-.Xr mail 1 ,
-.Xr mesg 1 ,
-.Xr who 1 ,
-.Xr write 1
-.Sh BUGS
-The version of
-.Xr talk 1
-released with
-.Bx 4.3
-uses a protocol that
-is incompatible with the protocol used in the version released with
-.Bx 4.2 .
-.Sh HISTORY
-The
-.Nm
-command appeared in
-.Bx 4.2 .