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talk(1)				 User Commands			       talk(1)

NAME
       talk - talk to another user

SYNOPSIS
       talk address [terminal]

DESCRIPTION
       The talk	utility	is a two-way, screen-oriented communication program.

       When first invoked, talk	sends a	message	similar	to:

       Message from TalkDaemon@	her_machine at time ...
       talk: connection	requested by your_address
       talk: respond with: talk	your_address

       to  the	specified address. At this point, the recipient	of the message
       can reply by typing:

       talk your_address

       Once communication is established, the two parties can type  simultane-
       ously,  with  their output displayed in separate	regions	of the screen.
       Characters are processed	as follows:

	 o  Typing the alert character will alert the recipient's terminal.

	 o  Typing Control-L will cause	the sender's screen regions to be  re-
	    freshed.

	 o  Typing the erase and kill characters will affect the sender's ter-
	    minal in the manner	described by the termios(3C) interface.

	 o  Typing the interrupt or end-of-file	(EOF) characters  will	termi-
	    nate the local talk	utility. Once the talk session has been	termi-
	    nated on one side, the other side of the talk session will be  no-
	    tified  that the talk session has been terminated and will be able
	    to do nothing except exit.

	 o  Typing characters from LC_CTYPE  classifications  print  or	 space
	    will  cause	 those characters to be	sent to	the recipient's	termi-
	    nal.

	 o  When and only when the stty	iexten local mode  is  enabled,	 addi-
	    tional  special  control  characters and multi-byte	or single-byte
	    characters are processed as	printable  characters  if  their  wide
	    character equivalents are printable.

	 o  Typing  other non-printable	characters will	cause them to be writ-
	    ten	to the recipient's terminal  as	 follows:  control  characters
	    will appear	as a caret (^) followed	by the appropriate ASCII char-
	    acter, and characters with the high-order bit set will  appear  in
	    "meta"  notation.  For  example,  `\003'  is displayed as `^C' and
	    `\372' as `M-z'.

       Permission to be	a recipient of a talk message can be denied or granted
       by  use of the mesg(1) utility. However,	a user's privilege may further
       constrain the domain of accessibility of	other users'  terminals.  Cer-
       tain commands, such as pr(1), disallow messages in order	to prevent in-
       terference with their output. talk will fail when the  user  lacks  the
       appropriate privileges to perform the requested action.

       Certain block-mode terminals do not have	all the	capabilities necessary
       to support the simultaneous exchange of	messages  required  for	 talk.
       When  this  type	of exchange cannot be supported	on such	terminals, the
       implementation may support an exchange with reduced levels of  simulta-
       neous interaction or it may report an error describing the terminal-re-
       lated deficiency.

OPERANDS
       The following operands are supported:

       address	       The recipient of	the talk session. One form of  address
		       is  the username, as returned by	the who(1) utility. If
		       you wish	to talk	to someone on your own	machine,  then
		       username	 is just the person's login name.  If you wish
		       to talk to a user on another host, then username	is one
		       of the following	forms:

		       host!user
		       host.user
		       host:user
		       user@host

		       although	user@host is perhaps preferred.

       terminal	       If  the recipient is logged in more than	once, terminal
		       can be used to indicate the appropriate terminal	 name.
		       If  terminal is not specified, the talk message will be
		       displayed on one	or more	accessible terminals in	use by
		       the  recipient. The format of terminal will be the same
		       as that returned	by  who.

ENVIRONMENT VARIABLES
       See environ(5) for descriptions of the following	environment  variables
       that affect the execution of talk: LANG,	LC_ALL,	LC_CTYPE, LC_MESSAGES,
       and NLSPATH.

       TERM	       Determine the name of the invoker's terminal type.   If
		       this variable is	unset or null, an unspecified terminal
		       type will be used.

EXIT STATUS
       The following exit values are returned:

       0	Successful completion.

       >0	An error occurred, or talk was invoked on a terminal incapable
		of supporting it.

FILES
       /etc/hosts	       host name database

       /var/adm/utmpx	       user and	accounting information for talk

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE	TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWrcmds			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       mail(1),	 mesg(1),  pr(1), stty(1), who(1), write(1),  termios(3C), at-
       tributes(5), environ(5),	standards(5)

NOTES
       Typing Control-L	redraws	the screen, while the erase,  kill,  and  word
       kill characters will work in talk as normal. To exit, type an interrupt
       character. talk then moves the cursor to	the bottom of the  screen  and
       restores	the terminal to	its previous state.

SunOS 5.10			  6 Nov	2000			       talk(1)

NAME | SYNOPSIS | DESCRIPTION | OPERANDS | ENVIRONMENT VARIABLES | EXIT STATUS | FILES | ATTRIBUTES | SEE ALSO | NOTES

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