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Diff for /src/usr.bin/telnet/telnet.1 between version 1.45 and 1.46

version 1.45, 2013/01/17 21:29:15 version 1.46, 2014/01/19 10:39:00
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 .Os  .Os
 .Sh NAME  .Sh NAME
 .Nm telnet  .Nm telnet
 .Nd user interface to the  .Nd user interface to the TELNET protocol
 .Tn TELNET  
 protocol  
 .Sh SYNOPSIS  .Sh SYNOPSIS
 .Nm telnet  .Nm telnet
 .Bk -words  .Bk -words
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 The  The
 .Nm  .Nm
 command  command
 is used to communicate with another host using the  is used to communicate with another host using the TELNET protocol.
 .Tn TELNET  
 protocol.  
 If  If
 .Nm  .Nm
 is invoked without the  is invoked without the
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 .Ic intr ,  .Ic intr ,
 and  and
 .Ic flush  .Ic flush
 characters are trapped locally, and sent as  characters are trapped locally, and sent as TELNET
 .Tn TELNET  
 protocol sequences to the remote side.  protocol sequences to the remote side.
 If  If
 .Dv LINEMODE  .Dv LINEMODE
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 .Ic susp  .Ic susp
 and  and
 .Ic eof  .Ic eof
 are also sent as  are also sent as TELNET protocol sequences, and
 .Tn TELNET  
 protocol sequences,  
 and  
 .Ic quit  .Ic quit
 is sent as a  is sent as a
 .Dv TELNET ABORT  .Dv TELNET ABORT
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 .Ic autosynch  .Ic autosynch
 below)  below)
 which cause this action to flush subsequent output to the terminal  which cause this action to flush subsequent output to the terminal
 (until the remote host acknowledges the  (until the remote host acknowledges the TELNET
 .Tn TELNET  
 sequence) and flush previous terminal input  sequence) and flush previous terminal input
 (in the case of  (in the case of
 .Ic quit  .Ic quit
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 authentication.  authentication.
 .El  .El
 .It Ic close  .It Ic close
 Close a  Close a TELNET session and return to command mode.
 .Tn TELNET  
 session and return to command mode.  
 .It Ic display Ar argument ...  .It Ic display Ar argument ...
 Displays all, or some, of the  Displays all, or some, of the
 .Ic set  .Ic set
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 option, nothing happens.  option, nothing happens.
 If, however, the remote side does support the  If, however, the remote side does support the
 .Dv LOGOUT  .Dv LOGOUT
 option, this command should cause the remote side to close the  option, this command should cause the remote side to close the TELNET
 .Tn TELNET  
 connection.  connection.
 If the remote side also supports the concept of  If the remote side also supports the concept of
 suspending a user's session for later reattachment,  suspending a user's session for later reattachment,
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 should terminate the session immediately.  should terminate the session immediately.
 .It Ic mode Ar type  .It Ic mode Ar type
 .Ar type  .Ar type
 is one of several options, depending on the state of the  is one of several options, depending on the state of the TELNET
 .Tn TELNET  
 session.  session.
 The remote host is asked for permission to go into the requested mode.  The remote host is asked for permission to go into the requested mode.
 If the remote host is capable of entering that mode, the requested  If the remote host is capable of entering that mode, the requested
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 If no port number  If no port number
 is specified,  is specified,
 .Nm  .Nm
 will attempt to contact a  will attempt to contact a TELNET server at the default port.
 .Tn TELNET  
 server at the default port.  
 The host specification may be either a host name (see  The host specification may be either a host name (see
 .Xr hosts 5 )  .Xr hosts 5 )
 or an Internet address specified in the ``dot notation'' (see  or an Internet address specified in the ``dot notation'' (see
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 option.  option.
 When connecting to a non-standard port,  When connecting to a non-standard port,
 .Nm  .Nm
 omits any automatic initiation of  omits any automatic initiation of TELNET options.
 .Tn TELNET  
 options.  
 When the port number is preceded by a minus sign,  When the port number is preceded by a minus sign,
 the initial option negotiation is done.  the initial option negotiation is done.
 After establishing a connection, the file  After establishing a connection, the file
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 .Nm  .Nm
 command prompt.  command prompt.
 .It Ic quit  .It Ic quit
 Close any open  Close any open TELNET session and exit
 .Tn TELNET  
 session and exit  
 .Nm telnet .  .Nm telnet .
 An end-of-file (in command mode) will also close a session and exit.  An end-of-file (in command mode) will also close a session and exit.
 .It Ic send Ar argument ...  .It Ic send Ar argument ...
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 sequence.  sequence.
 This sequence causes the remote system to discard all previously typed  This sequence causes the remote system to discard all previously typed
 (but not yet read) input.  (but not yet read) input.
 This sequence is sent as  This sequence is sent as TCP urgent
 .Tn TCP  
 urgent  
 data (and may not work if the remote system is a  data (and may not work if the remote system is a
 .Bx 4.2  .Bx 4.2
 system -- if  system -- if
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 sequence.  sequence.
 .Ar cmd  .Ar cmd
 can be either a decimal number between 0 and 255,  can be either a decimal number between 0 and 255,
 or a symbolic name for a specific  or a symbolic name for a specific TELNET command.
 .Dv TELNET  
 command.  
 .Ar cmd  .Ar cmd
 can also be either  can also be either
 .Ic help  .Ic help
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 sequence.  sequence.
 .Ar cmd  .Ar cmd
 can be either a decimal number between 0 and 255,  can be either a decimal number between 0 and 255,
 or a symbolic name for a specific  or a symbolic name for a specific TELNET command.
 .Dv TELNET  
 command.  
 .Ar cmd  .Ar cmd
 can also be either  can also be either
 .Ic help  .Ic help
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 sequence.  sequence.
 .Ar cmd  .Ar cmd
 can be either a decimal number between 0 and 255,  can be either a decimal number between 0 and 255,
 or a symbolic name for a specific  or a symbolic name for a specific TELNET command.
 .Dv TELNET  
 command.  
 .Ar cmd  .Ar cmd
 can also be either  can also be either
 .Ic help  .Ic help
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 sequence.  sequence.
 .Ar cmd  .Ar cmd
 can be either a decimal number between 0 and 255,  can be either a decimal number between 0 and 255,
 or a symbolic name for a specific  or a symbolic name for a specific TELNET command.
 .Dv TELNET  
 command.  
 .Ar cmd  .Ar cmd
 can also be either  can also be either
 .Ic help  .Ic help
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 commands.  commands.
 .Bl -tag -width escape  .Bl -tag -width escape
 .It Ic ayt  .It Ic ayt
 If  If TELNET is in
 .Tn TELNET  
 is in  
 .Ic localchars  .Ic localchars
 mode, or  mode, or
 .Dv LINEMODE  .Dv LINEMODE
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 character.  character.
 .It Ic forw1  .It Ic forw1
 .It Ic forw2  .It Ic forw2
 If  If TELNET is operating in
 .Tn TELNET  
 is operating in  
 .Dv LINEMODE ,  .Dv LINEMODE ,
 these are the  these are the
 characters that, when typed, cause partial lines to be  characters that, when typed, cause partial lines to be
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 character.  character.
 .It Ic rlogin  .It Ic rlogin
 This is the rlogin escape character.  This is the rlogin escape character.
 If set, the normal  If set, the normal TELNET
 .Tn TELNET  
 escape character is ignored unless it is  escape character is ignored unless it is
 preceded by this character at the beginning of a line.  preceded by this character at the beginning of a line.
 This character, at the beginning of a line, followed by  This character, at the beginning of a line, followed by
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 .Dv TELNET LINEMODE  .Dv TELNET LINEMODE
 option has  option has
 been enabled.  been enabled.
 Special characters are characters that get mapped to  Special characters are characters that get mapped to TELNET
 .Tn TELNET  
 commands sequences (like  commands sequences (like
 .Ic ip  .Ic ip
 or  or
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 .It Ic import  .It Ic import
 Switch to the remote defaults for the special characters.  Switch to the remote defaults for the special characters.
 The remote default characters are those of the remote system  The remote default characters are those of the remote system
 at the time when the  at the time when the TELNET connection was established.
 .Tn TELNET  
 connection was established.  
 .It Ic \&?  .It Ic \&?
 Prints out help information for the  Prints out help information for the
 .Ic slc  .Ic slc
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 .Ic ao  .Ic ao
 or  or
 .Ic quit  .Ic quit
 characters are recognized (and transformed into  characters are recognized (and transformed into TELNET sequences; see
 .Tn TELNET  
 sequences; see  
 .Ic set  .Ic set
 above for details),  above for details),
 .Nm  .Nm
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 until the remote system acknowledges (via a  until the remote system acknowledges (via a
 .Dv TELNET TIMING MARK  .Dv TELNET TIMING MARK
 option)  option)
 that it has processed those  that it has processed those TELNET sequences.
 .Tn TELNET  
 sequences.  
 The initial value for this toggle is  The initial value for this toggle is
 .Dv TRUE  .Dv TRUE
 if the terminal user had not  if the terminal user had not
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 .It Ic autologin  .It Ic autologin
 If the remote side supports the  If the remote side supports the
 .Dv TELNET AUTHENTICATION  .Dv TELNET AUTHENTICATION
 option  option TELNET attempts to use it to perform automatic authentication.
 .Tn TELNET  
 attempts to use it to perform automatic authentication.  
 If the  If the
 .Dv AUTHENTICATION  .Dv AUTHENTICATION
 option is not supported, the user's login  option is not supported, the user's login
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 .Ic intr  .Ic intr
 and  and
 .Ic quit  .Ic quit
 characters), the resulting  characters), the resulting TELNET sequence sent is followed by the
 .Tn TELNET  
 sequence sent is followed by the  
 .Dv TELNET SYNCH  .Dv TELNET SYNCH
 sequence.  sequence.
 This procedure  This procedure
 .Em should  .Em should
 cause the remote system to begin throwing away all previously  cause the remote system to begin throwing away all previously
 typed input until both of the  typed input until both of the TELNET
 .Tn TELNET  
 sequences have been read and acted upon.  sequences have been read and acted upon.
 The initial value of this toggle is  The initial value of this toggle is
 .Dv FALSE .  .Dv FALSE .
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 characters (see  characters (see
 .Ic set  .Ic set
 above) are recognized locally, and transformed into (hopefully) appropriate  above) are recognized locally, and transformed into (hopefully) appropriate
 .Tn TELNET  TELNET control sequences
 control sequences  
 (respectively  (respectively
 .Ic ao ,  .Ic ao ,
 .Ic ip ,  .Ic ip ,
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 .It Ic options  .It Ic options
 Toggles the display of some internal  Toggles the display of some internal
 .Nm  .Nm
 protocol processing (having to do with  protocol processing (having to do with TELNET options).
 .Tn TELNET  
 options).  
 The initial value for this toggle is  The initial value for this toggle is
 .Dv FALSE .  .Dv FALSE .
 .It Ic prettydump  .It Ic prettydump
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 .Ic netdata  .Ic netdata
 command will be formatted in a more user readable format.  command will be formatted in a more user readable format.
 Spaces are put between each character in the output, and the  Spaces are put between each character in the output, and the
 beginning of any  beginning of any TELNET
 .Tn TELNET  
 escape sequence is preceded by a '*' to aid in locating them.  escape sequence is preceded by a '*' to aid in locating them.
 .It Ic skiprc  .It Ic skiprc
 When the skiprc toggle is  When the skiprc toggle is
 .Dv TRUE ,  .Dv TRUE ,
 .Tn TELNET  TELNET skips the reading of the
 skips the reading of the  
 .Pa \&.telnetrc  .Pa \&.telnetrc
 file in the user's home  file in the user's home
 directory when connections are opened.  directory when connections are opened.
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