1.\" Copyright (c) 1983, 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 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. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)talk.1 8.1 (Berkeley) 6/6/93 33.\" $FreeBSD: src/usr.bin/talk/talk.1,v 1.6.2.5 2002/07/15 07:57:15 keramida Exp $ 34.\" $DragonFly: src/usr.bin/talk/talk.1,v 1.4 2006/02/17 19:39:11 swildner Exp $ 35.\" 36.Dd June 6, 1993 37.Dt TALK 1 38.Os 39.Sh NAME 40.Nm talk 41.Nd talk to another user 42.Sh SYNOPSIS 43.Nm 44.Ar person 45.Op Ar ttyname 46.Sh DESCRIPTION 47The 48.Nm 49utility is a visual communication program which copies lines from your 50terminal to that of another user. 51.Pp 52Options available: 53.Bl -tag -width ttyname 54.It Ar person 55If you wish to talk to someone on your own machine, then 56.Ar person 57is just the person's login name. 58If you wish to talk to a user on 59another host, then 60.Ar person 61is of the form 62.Ql user@host 63or 64.Ql host!user 65or 66.Ql host:user . 67.It Ar ttyname 68If you wish to talk to a user who is logged in more than once, the 69.Ar ttyname 70argument may be used to indicate the appropriate terminal 71name, where 72.Ar ttyname 73is of the form 74.Ql ttyXX . 75.El 76.Pp 77When first called, 78.Nm 79sends the message 80.Bd -literal -offset indent -compact 81Message from TalkDaemon@his_machine... 82talk: connection requested by your_name@your_machine. 83talk: respond with: talk your_name@your_machine 84.Ed 85.Pp 86to the user you wish to talk to. 87At this point, the recipient 88of the message should reply by typing 89.Pp 90.Dl talk \ your_name@your_machine 91.Pp 92It doesn't matter from which machine the recipient replies, as 93long as his login-name is the same. 94Once communication is established, 95the two parties may type simultaneously, with their output appearing 96in separate windows. 97Typing control-L 98.Ql ^L 99will cause the screen to 100be reprinted. 101Typing control-D 102.Ql ^D 103will clear both parts of your screen to be cleared, while 104the control-D character will be sent to the remote side 105(and just displayed by this 106.Nm 107client). 108Your erase, kill, and word kill characters will 109behave normally. 110To exit, just type your interrupt character; 111.Nm 112then moves the cursor to the bottom of the screen and restores the 113terminal to its previous state. 114.Pp 115Permission to talk may be denied or granted by use of the 116.Xr mesg 1 117command. 118At the outset talking is allowed. 119.Sh FILES 120.Bl -tag -width /var/run/utmp -compact 121.It Pa /etc/hosts 122to find the recipient's machine 123.It Pa /var/run/utmp 124to find the recipient's tty 125.El 126.Sh SEE ALSO 127.Xr mail 1 , 128.Xr mesg 1 , 129.Xr wall 1 , 130.Xr who 1 , 131.Xr write 1 , 132.Xr talkd 8 133.Sh HISTORY 134The 135.Nm 136command appeared in 137.Bx 4.2 . 138.Sh BUGS 139The version of 140.Nm 141released with 142.Bx 4.3 143uses a protocol that 144is incompatible with the protocol used in the version released with 145.Bx 4.2 . 146