1.\" Copyright (c) 1983, 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" %sccs.include.redist.roff% 5.\" 6.\" @(#)talk.1 8.1 (Berkeley) 06/06/93 7.\" 8.Dd 9.Dt TALK 1 10.Os BSD 4.2 11.Sh NAME 12.Nm talk 13.Nd talk to another user 14.Sh SYNOPSIS 15.Nm talk 16.Ar person 17.Op Ar ttyname 18.Sh DESCRIPTION 19.Nm Talk 20is a visual communication program which copies lines from your 21terminal to that of another user. 22.Pp 23Options available: 24.Bl -tag -width ttyname 25.It Ar person 26If you wish to talk to someone on your own machine, then 27.Ar person 28is just the person's login name. If you wish to talk to a user on 29another host, then 30.Ar person 31is of the form 32.Ql user@host . 33.It Ar ttyname 34If you wish to talk to a user who is logged in more than once, the 35.Ar ttyname 36argument may be used to indicate the appropriate terminal 37name, where 38.Ar ttyname 39is of the form 40.Ql ttyXX . 41.El 42.Pp 43When first called, 44.Nm talk 45sends the message 46.Bd -literal -offset indent -compact 47Message from TalkDaemon@his_machine... 48talk: connection requested by your_name@your_machine. 49talk: respond with: talk your_name@your_machine 50.Ed 51.Pp 52to the user you wish to talk to. At this point, the recipient 53of the message should reply by typing 54.Pp 55.Dl talk \ your_name@your_machine 56.Pp 57It doesn't matter from which machine the recipient replies, as 58long as his login-name is the same. Once communication is established, 59the two parties may type simultaneously, with their output appearing 60in separate windows. Typing control-L 61.Ql ^L 62will cause the screen to 63be reprinted, while your erase, kill, and word kill characters will 64behave normally. To exit, just type your interrupt character; 65.Nm talk 66then moves the cursor to the bottom of the screen and restores the 67terminal to its previous state. 68.Pp 69Permission to talk may be denied or granted by use of the 70.Xr mesg 1 71command. At the outset talking is allowed. Certain commands, in 72particular 73.Xr nroff 1 74and 75.Xr pr 1 , 76disallow messages in order to 77prevent messy output. 78.Pp 79.Sh FILES 80.Bl -tag -width /var/run/utmp -compact 81.It Pa /etc/hosts 82to find the recipient's machine 83.It Pa /var/run/utmp 84to find the recipient's tty 85.El 86.Sh SEE ALSO 87.Xr mail 1 , 88.Xr mesg 1 , 89.Xr who 1 , 90.Xr write 1 91.Sh BUGS 92The version of 93.Xr talk 1 94released with 95.Bx 4.3 96uses a protocol that 97is incompatible with the protocol used in the version released with 98.Bx 4.2 . 99.Sh HISTORY 100The 101.Nm 102command appeared in 103.Bx 4.2 . 104