otalk man page on Ultrix

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talk(1)								       talk(1)

Name
       talk, otalk - talk to another user

Syntax
       talk person [ttyname]

       otalk person [ttyname]

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

       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 :
       host!user
	or
       host.user
	or
       host:user
	or
       user@host
       The form user@host is perhaps preferred.

       If you want to talk to a user who is logged in more than once, the tty‐
       name argument may be used to indicate the appropriate terminal name.

       When first called, it 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	 sepa‐
       rate  windows.	Typing	Ctrl-L	will cause the screen to be reprinted,
       while your erase, kill, and word kill characters will work in  talk  as
       normal.	 To  exit,  just type your interrupt character; then moves the
       cursor to the bottom of the screen and restores the terminal.

       Permission to talk may be denied or granted by use of the mesg command.
       At  the outset talking is allowed.  Certain commands, in particular and
       disallow messages in order to prevent messy output.

       In order to use the program with machines on your network that  may  be
       running	earlier	 versions  of ULTRIX, you must initiate a session with
       the command (/usr/ucb/otalk) instead  of	 the  command  You  must  also
       respond	to  a  request	from a machine running an older version of the
       program with the command. See the Restrictions section.

Restrictions
       The version of released with ULTRIX V3.0 uses a protocol that is incom‐
       patible	with  the  protocol  used  in  earlier versions. Starting with
       ULTRIX V3.0, the	 program  communicates	with  other  machines  running
       ULTRIX,	V3.0  (and later), and machines running 4.3 BSD or versions of
       UNIX based on 4.3 BSD.

       The command is not 8-bit clean. Typing in DEC Multinational  Characters
       (ISO-8859/1)  causes  the  characters to echo as a sequence of a carets
       (^) followed by the character represented with its  high	 bit  cleared.
       This  limitation makes unusable if you want to communicate using a lan‐
       guage which has ISO-8859/1 characters in its alphabet.

Examples
       The following example demonstrates how to use  the  command.   In  this
       case,  user1, whose system (system1) is running ULTRIX V2.2 initiates a
       session with user2, whose system	 (system2)  is	running	 ULTRIX	 V3.0.
       User1 types the following:
       system1> talk user2@system2
       The following message appears on the screen of user2:
       Message from Talk_Daemon@system2 at 12:37 ...
       talk: connection requested by user1@system1.
       talk: respond with:  otalk user1@system1
       To  establish  the  connection  user2 follows the instructions from the
       Talk_Daemon and types the following at the system prompt:
       system2> otalk user1@system1

Files
       to find the recipient's machine

       to find the recipient's tty

See Also
       mail(1), mesg(1), who(1), write(1), talkd(8c)

								       talk(1)
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