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VT

Section: User Commands (1C)
Updated: 21 Nov 1988
Index

NAME

vt - VT interactive remote login initiator

SYNOPSIS

vt[-g][-D][-f][-F logfile][-B][host]

DESCRIPTION

The vt program implements the initiator side of a remote login service based on the Virtual Terminal (VT)standard and the VT TELNET profile from the NIST OSI WorkshopImplementor's Agreements.

The user interface to the service is based on BSD 4.2 TELNET.Command mode is entered by typing an escape character (``^]'' by default)as in TELNET.

OPTIONS

-g: Use only the G0 character set for the ascii repertoire (graphics only).
-D: Use the VT asynchronous default profile (see ISO 9040) rather thanthe TELNET profile.
-B: Do not use the VT-BREAK functional unit (see ISO 9040) in negotiatingthe VT association.
-F logfile: Sets the VT logfile.Note that the pathname of this file is interpreted relatively to theISODE logging area.To have tracing information written to a file in the currentdirectory,start the filename with ``./''.
-f: Do not read and execute the commands in the file $HOME/.vtrc on startup.

COMMANDS

open host: Open an association with the remote login service on the named host.
close: Close the existing association.
quit: Close the association and exit the remote login initiator process.
escape: Set the ``escape character'' used to enter command mode. Control charactersmay be specified as ``^'' followed by a single letter;e.g. ``control-X'' is ``^X''.
ayt: Send an ``are you there'' message to the remote login server.
break: Send a ``break'' message to flush data queued in both directionsand interrupt the remote process.
help: Print a description of the available commands.
set: Configure the VT variables listed below.
status: Prints the current status of VT.
suspend: Suspendvt.This command only works when the user is using thecsh.

VT commands in $HOME/.vtrc are executed when vt startsup unless the -f flag is used.

Variables

Variables that can be manipulated with the setcommand include:

crmod: Toggle carriage return mode. When this mode is enabledany carriage return characters received from the remotehost will be mapped into a carriage return and a linefeed. This mode does not affect those characterstyped by the user, only those received.
echo: Sets the echo mode to remote (ie. responder echoes) with ``setecho remote'' or local (ie. initiator echoes) with ``setecho local''.
repertoire: Sets the character set to ascii or transparent(binary).

FILES

/etc/isoentitiesISODE application entity title database$HOME/.vtrc     runcom file

AUTHORS

Rick Wilder and Don Chirieleison,The MITRE Corporation.
Parts of this program are based on the telnet(1c) program supplied withBerkeley UNIX.

BUGS

vt and vtd need to be brought up to date with BSD 4.3(4?)TELNET.

The encodings of the VT PDUs may need to be updated when the International Standard version of ISO 9041 is available.

This document was created byman2html,using the manual pages.

VT