TALK(1) 						    BSD General Commands Manual 						   TALK(1)

NAME

     talk -- talk to another user

SYNOPSIS

     talk person [ttyname]

DESCRIPTION

     The talk utility is a visual communication program which copies lines from your terminal to that of another user.

     Options available:

     person   If you wish to talk to someone on your own machine, then person is just the person's login name.	If you wish to talk to a user on
	      another host, then person is of the form 'user@host' or 'host!user' or 'host:user'.

     ttyname  If you wish to talk to a user who is logged in more than once, the ttyname argument may be used to indicate the appropriate terminal
	      name, where ttyname is of the form 'ttyXX'.

     When first called, talk sends the message
	   Message from TalkDaemon@his_machine...
	   talk: connection requested by your_name@your_machine.
	   talk: respond with: talk your_name@your_machine

     to the user you wish to talk to.  At this point, the recipient of the message should reply by typing

	   talk  your_name@your_machine

     It does not 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 '^L' will cause the screen to be
     reprinted.  Typing control-D '^D' will clear both parts of your screen to be cleared, while the control-D character will be sent to the
     remote side (and just displayed by this talk client).  Your erase, kill, and word kill characters will behave normally.  To exit, just type
     your interrupt character; talk then moves the cursor to the bottom of the screen and restores the terminal to its previous state.

     Permission to talk may be denied or granted by use of the mesg(1) command.  At the outset talking is allowed.

CONFIGURATION

     The talk utility relies on the talkd system daemon.  See talkd(8) for information about enabling talkd.

FILES

     /etc/hosts      to find the recipient's machine
     /var/run/utmpx  to find the recipient's tty

SEE ALSO

     mail(1), mesg(1), wall(1), who(1), write(1), talkd(8)

HISTORY

     The talk command appeared in 4.2BSD.

     In FreeBSD 5.3, the default behaviour of talk was changed to treat local-to-local talk requests as originating and terminating at localhost.
     Before this change, it was required that the hostname (as per gethostname(3)) resolved to a valid IPv4 address (via gethostbyname(3)), making
     talk unsuitable for use in configurations where talkd(8) was bound to the loopback interface (normally for security reasons).

BUGS

     The version of talk released with 4.3BSD uses a protocol that is incompatible with the protocol used in the version released with 4.2BSD.

     Multibyte characters are not recognized.

BSD
								  August 21, 2008							       BSD