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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
	     refreshed.

	  o  Typing  the  erase	 and  kill characters will affect the sender's
	     terminal 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 ter-
	     minated on	one side, the other side of the	talk session  will  be
	     notified  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
	     character,	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  per-
	     son'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 ter-
	     minal 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: LC_CTYPE, LC_MESSAGES, and NLSPATH.

       TERM  Determine the name	of the invoker's terminal type.	 If this vari-
	     able 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			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       mail(1),	 mesg(1),  pr(1), stty(1), who(1), write(1),  termios(3C), at-
       tributes(5), environ(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 5.9			  6 Nov	2000			       talk(1)

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

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