Content-type: text/html Man page of talk

talk

Section: User Commands (1)
Index Return to Main Contents
 

NAME

talk - Converses with another user  

SYNOPSIS

talk user [tty_name]


 

STANDARDS

Interfaces documented on this reference page conform to industry standards as follows:

talk:  XPG4, XPG4-UNIX

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

OPTIONS

None
 

OPERANDS

The name of the desired recipient in the form returned by the who utility.

[Compaq]  If the second user is on a remote host, the name of the host must be specified in one of the following ways:
[email protected] 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 accessible terminals in use by the recipient. The format of tty_name is the same as that returned by the who command.
 

DESCRIPTION

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

[Compaq]  When using full domain names, the only valid form for specifying the user and host is [email protected]. For example, [email protected] initiates a conversation with user andy at host host17 in the dev.abc.com 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 invitation message is sent to the specified terminal. Otherwise, the invitation 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 terminates the local talk program. Once the talk session has been terminated 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.
 

NOTES

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

EXIT STATUS

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

EXAMPLES

If john at host1 wants to talk to fred, who is logged in on host2, john enters: $ talk [email protected]

The following message is displayed on fred's terminal: Message from [email protected] at 15:16... talk: connection requested by [email protected]. talk: respond with: talk [email protected]
To accept the invitation, fred enters: $ talk [email protected] To talk to fred only if he is logged in on the console at host2, enter: $ talk [email protected] console

 

ENVIRONMENT VARIABLES

The following environment variables affect the execution of *cmd*: Provides 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 variables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value, overrides 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 multbyte 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 diagnostic messages written to standard error. Determines the location of message catalogues for the processing of LC_MESSAGES.
 

SEE ALSO

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

Standards:  standards(5)


 

Index

NAME
SYNOPSIS
STANDARDS
OPTIONS
OPERANDS
DESCRIPTION
NOTES
EXIT STATUS
EXAMPLES
ENVIRONMENT VARIABLES
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 02:42:45 GMT, October 02, 2010