src/usr.bin/telnet/telnet.1 - diff

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Diff for /src/usr.bin/telnet/telnet.1 between version 1.15 and 1.16

version 1.15, 1999/02/21 02:50:04

version 1.16, 1999/06/05 01:21:42

Line 36

.\"

.Dd February 3, 1994

.Dt TELNET 1

.Os BSD 4.2

.Os

.Sh NAME

.Nm telnet

.Nd user interface to the

.Tn TELNET

protocol

.Sh SYNOPSIS

Line 70

The

.Nm telnet

command

is used to communicate with another host using the

.Tn TELNET

protocol.

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TOS name found in the

.Pa /etc/iptos

file.

.It Fl X Ar atype

Disables the

.Ar atype

type of authentication.

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.Ic debug

toggle to

.Dv TRUE .

.It Fl e Ar escapechar

Sets the initial

.Nm

escape character to

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instead of the remote host's realm, as determined

.Xr krb_realmofhost 3 .

.It Fl l Ar user

When connecting to the remote system, if the remote system

understands the

.Ev ENVIRON

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This option may also be used with the

.Ic open

command.

.It Fl n Ar tracefile

Opens

.Ar tracefile

for recording trace information.

Line 233

or ``old line by line''

depending on what the remote system supports.

.Pp

When

.Dv LINEMODE

is enabled, character processing is done on the

local system, under the control of the remote system. When input

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(this would mostly be used to enter passwords

without the password being echoed).

.Pp

If the

.Dv LINEMODE

option is enabled, or if the

.Ic localchars

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characters are trapped locally, and sent as

.Tn TELNET

protocol sequences to the remote side.

.Dv LINEMODE

has ever been enabled, then the user's

.Ic susp

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protocol sequences,

and

.Ic quit

is sent as a

.Dv TELNET ABORT

instead of

.Dv BREAK .

There are options (see

.Ic toggle

Line 328

.Ic display

commands).

.Bl -tag -width "mode type"

.It Ic auth Ar argument Op Ar ...

The

.Ic auth

command manipulates the information sent through the

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Close a

.Tn TELNET

session and return to command mode.

.It Ic display Ar argument Op Ar ...

Displays all, or some, of the

.Ic set

and

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.Ic encrypt stop

commands.

.El

.It Ic environ Ar arguments Op Ar ...

The

.Ic environ

command is used to manipulate the

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.Ic environ

command are:

.Bl -tag -width Fl

.It Ic define Ar variable value

Define the variable

.Ar variable

to have a value of

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.Ar value

may be enclosed in single or double quotes so

that tabs and spaces may be included.

.It Ic undefine Ar variable

Remove

.Ar variable

from the list of environment variables.

.It Ic export Ar variable

Mark the variable

.Ar variable

to be exported to the remote side.

.It Ic unexport Ar variable

Mark the variable

.Ar variable

to not be exported unless

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suspending a user's session for later reattachment,

the logout argument indicates that you

should terminate the session immediately.

.It Ic mode Ar type

.Ar type

is one of several options, depending on the state of the

.Tn TELNET

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option, or, if the remote side does not understand the

.Dv LINEMODE

option, then attempt to enter ``old-line-by-line'' mode.

.It Ic isig Pq Ic \-isig

Attempt to enable (disable) the

.Dv TRAPSIG

mode of the

.Dv LINEMODE

option.

This requires that the

.Dv LINEMODE

option be enabled.

.It Ic edit Pq Ic \-edit

Attempt to enable (disable) the

.Dv EDIT

mode of the

.Dv LINEMODE

option.

This requires that the

.Dv LINEMODE

option be enabled.

.It Ic softtabs Pq Ic \-softtabs

Attempt to enable (disable) the

.Dv SOFT_TAB

mode of the

.Dv LINEMODE

option.

This requires that the

.Dv LINEMODE

option be enabled.

.It Ic litecho Pq Ic \-litecho

Attempt to enable (disable) the

.Dv LIT_ECHO

mode of the

.Dv LINEMODE

option.

This requires that the

.Dv LINEMODE

option be enabled.

.It Ic \&?

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session and exit

.Nm telnet .

An end-of-file (in command mode) will also close a session and exit.

.It Ic send Ar arguments

Sends one or more special character sequences to the remote host.

The following are the arguments which may be specified

(more than one argument may be specified at a time):

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.Ic send

command.

.El

.It Ic set Ar argument value

.It Ic unset Ar argument value

The

.Ic set

command will set any one of a number of

Line 1125

.Pq Ic unset

commands.

.El

.It Ic slc Ar state

The

.Ic slc

command (Set Local Characters) is used to set

or change the state of the special

characters when the

.Dv TELNET LINEMODE

option has

been enabled. Special characters are characters that get

mapped to

.Tn TELNET

commands sequences (like

.Ic ip

Line 1160

.It Ic import

Switch to the remote defaults for the special characters.

The remote default characters are those of the remote system

at the time when the

.Tn TELNET

connection was established.

.It Ic \&?

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.Nm telnet .

This includes the peer one is connected to, as well

as the current mode.

.It Ic toggle Ar arguments Op Ar ...

Toggle (between

.Dv TRUE

and

Line 1438

.Nm telnet .

This command only works when the user is using the

.Xr csh 1 .

.It Ic \&! Op Ar command

Execute a single command in a subshell on the local

system. If

.Ar command

is omitted, then an interactive

subshell is invoked.

.It Ic \&? Op Ar command

Get help. With no arguments,

.Nm telnet

prints a help summary.

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On some remote systems, echo has to be turned off manually when in

``old line by line'' mode.

.Pp

In ``old line by line'' mode or

.Dv LINEMODE

the terminal's

.Ic eof