4.4BSD/usr/share/man/cat1/talk.0

TALK(1)                      BSD Reference Manual                      TALK(1)

NNAAMMEE
     ttaallkk - talk to another user

SSYYNNOOPPSSIISS
     ttaallkk _p_e_r_s_o_n [_t_t_y_n_a_m_e]

DDEESSCCRRIIPPTTIIOONN
     TTaallkk is a visual communication program which copies lines from your ter-
     minal to that of another user.

     Options available:

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

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

     When first called, ttaallkk 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 mes-
     sage should reply by typing

           talk  your_name@your_machine

     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 `^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; ttaallkk 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) com-
     mand.  At the outset talking is allowed.  Certain commands, in particular
     nroff(1) and pr(1),  disallow messages in order to prevent messy output.

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

SSEEEE AALLSSOO
     mail(1),  mesg(1),  who(1),  write(1)

BBUUGGSS
     The version of talk(1) released with 4.3BSD uses a protocol that is in-
     compatible with the protocol used in the version released with 4.2BSD.

HHIISSTTOORRYY
     The ttaallkk command appeared in 4.2BSD.

4.2 Berkeley Distribution        June 6, 1993                                1