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talk(1)								       talk(1)

       talk - Converses with another user

       talk user [tty_name]

       Interfaces  documented on this reference page conform to industry stan‐
       dards as follows:

       talk:  XCU5.0

       Refer to the standards(5) reference page	 for  more  information	 about
       industry standards and associated tags.


       The name of the desired recipient in the form returned by the who util‐

	      [Tru64 UNIX]  If the second user is on a remote host,  the  name
	      of the host must be specified in one of the following ways:

	      user@host	 host!user  host.user  host:user  If  the recipient is
	      logged in more than once, the tty_name argument can be  used  to
	      indicate	the  appropriate  terminal  name.   If tty_name is not
	      specified, the talk message is displayed on one or more accessi‐
	      ble  terminals  in use by the recipient.	The format of tty_name
	      is the same as that returned by the who command.

       The talk command allows two users to  enter  text  simultaneously  into
       windows	displayed  on each other's terminals.  To initiate a conversa‐
       tion, one user executes talk and specifies the second user's username.

       [Tru64 UNIX]  When using full domain names, the	only  valid  form  for
       specifying   the	  user	 and   host   is   user@host.	 For  example, initiates a conversation with user andy at host
       host17 in the domain.

       When  the  first	 user initiates the conversation, a message is sent to
       the second user.	 If the first user also specifies tty_name, the	 invi‐
       tation message is sent to the specified terminal.  Otherwise, the invi‐
       tation is sent to the terminal on the remote host on which  the	second
       user  first logged in.  Once this invitation is received, talk displays
       two windows on the first user's terminal and displays progress messages
       until the second user responds to the initial message.

       If the second user wants to have the conversation, the second user also
       executes talk from any terminal and specifies the first user's  account
       name  and  hostname,  if	 appropriate.	If the second user accepts the
       invitation, talk displays two windows on the  second  user's  terminal.
       One window displays what is typed by the local user; the other displays
       what is typed by the remote user.  To end the  conversation  and	 close
       the connection, either user can press the Interrupt key sequence.

       If  the second user does not want to permit talk invitations, that user
       should issue the mesg n command.

       The talk command processes characters as follows:  Typing  the  <alert>
       character  alerts the recipient's terminal.  Typing <Ctrl-L> causes the
       sender's screen regions to be refreshed.	 Typing	 the  Erase  and  Kill
       characters  affects  the	 sender's terminal as described on the termios
       reference page.	Typing the Interrupt or End-of-File characters	termi‐
       nates  the  local  talk program.	 Once the talk session has been termi‐
       nated on one side, the other side of the session is notified  that  the
       talk  session  has  been terminated and this side can do nothing except
       exit.  Typing characters from LC_TYPE classifications  print  or	 space
       causes those characters to be sent to the recipient's terminal.

       The  talk command fails when a user lacks the appropriate privileges to
       perform the requested action.

       [Tru64 UNIX]  The talk command uses the talk 4.3BSD protocol, which  is
       not compatible with 4.2BSD versions of talk.

       The  following  exit  values  are  returned: Successful completion.  An
       error occurred or your terminal is incapable of supporting talk.

       If john at host1 wants to talk to fred, who is logged in on host2, john
       enters: $ talk fred@host2

	      The  following  message is displayed on fred's terminal: Message
	      from TalkDaemon@host1 at 15:16...	 talk: connection requested by
	      john@host1.  talk: respond with: talk john@host1

	      To accept the invitation, fred enters: $ talk john@host1 To talk
	      to fred only if he is logged in on the console at host2,	enter:
	      $ talk fred@host2 console

       The following environment variables affect the execution of *cmd*: Pro‐
       vides a default value for the internationalization variables  that  are
       unset  or  null. If LANG is unset or null, the corresponding value from
       the default locale is used.  If any of the  internationalization	 vari‐
       ables contain an invalid setting, the utility behaves as if none of the
       variables had been defined.  If set to a non-empty string value,	 over‐
       rides  the  values  of  all  the	 other internationalization variables.
       Determines the locale for the interpretation of sequences of  bytes  of
       text  data  as characters (for example, single-byte as opposed to mult‐
       byte characters in arguments  and  input	 files).  If  the  recipient's
       locale  does  not  use an LC_CTYPE equivalent to yours, the results are
       undefined.  Determines the locale for the format and contents of	 diag‐
       nostic  messages written to standard error.  Determines the location of
       message catalogues for the processing of LC_MESSAGES.

       Commands:  mesg(1), named(8), stty(1), talkd(8), who(1), write(1)

       Standards:  standards(5)


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