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Preface

Introduction

User Commands

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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 simultaneously, with their output displayed in separate regions of the screen. Characters are processed as follows:

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. Certain commands, such as pr(1), disallow messages in order to prevent interference 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 simultaneous interaction or it may report an error describing the terminal-related 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), attributes(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.