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TIP(1)			FreeBSD	General	Commands Manual			TIP(1)

NAME
     tip -- connect to a remote	system

SYNOPSIS
     tip [-nv] [-speed]	[system-name]

DESCRIPTION
     The tip utility establishes a full-duplex connection to another machine,
     giving the	appearance of being logged in directly on the remote CPU.  It
     goes without saying that you must have a login on the machine (or equiva-
     lent) to which you	wish to	connect.

     The options are as	follows:

     -n	     No	escape (disable	tilde).

     -v	     Set verbose mode.

     If	speed is specified, it will override any baudrate specified in the
     system description	being used.

     If	neither	speed nor system-name are specified, system-name will be set
     to	the value of the HOST environment variable.

     If	speed is specified but system-name is not, system-name will be set to
     a value of	``tip''	with speed appended.  For example, tip -1200 will set
     system-name to ``tip1200''.

     Typed characters are normally transmitted directly	to the remote machine
     (which does the echoing as	well).	A tilde	(`~') appearing	as the first
     character of a line is an escape signal; the following are	recognized:

     ~^D or ~.
	     Drop the connection and exit.  Only the connection	is dropped -
	     the login session is not terminated.

     ~c	[name]
	     Change directory to name (no argument implies change to home
	     directory).

     ~!	     Escape to a shell (exiting	the shell will return to tip).

     ~>	     Copy file from local to remote.  The tip utility prompts for the
	     name of a local file to transmit.

     ~<	     Copy file from remote to local.  The tip utility prompts first
	     for the name of the file to be sent, then for a command to	be
	     executed on the remote machine.

     ~p	from [to]
	     Send a file to a remote UNIX host.	 This command causes the
	     remote UNIX system	to run the following command string, sending
	     it	the from file:

		   stty	-echo; cat > 'to'; stty	echo

	     If	the to file is not specified, the from file name is used.
	     This command is actually a	UNIX specific version of the ~>	com-
	     mand.

     ~t	from [to]
	     Take a file from a	remote UNIX host.  As in the ~p	command, the
	     to	file defaults to the from file name if it is not specified.
	     The remote	host executes the following command string to send the
	     file to tip:

		   cat 'from'; echo '' | tr '\012' '\01'

     ~|	     Pipe the output from a remote command to a	local UNIX process.
	     The command string	sent to	the local UNIX system is processed by
	     the shell.

     ~$	     Pipe the output from a local UNIX process to the remote host.
	     The command string	sent to	the local UNIX system is processed by
	     the shell.

     ~C	     Fork a child process on the local system to perform special pro-
	     tocols such as XMODEM.  The child program will be run with	the
	     following arrangement of file descriptors:

		   0 <-> remote	tty in
		   1 <-> remote	tty out
		   2 <-> local tty stderr

     ~#	     Send a BREAK to the remote	system.	 For systems which do not sup-
	     port the necessary	ioctl()	call, the break	is simulated by	a
	     sequence of line speed changes and	DEL characters.

     ~s	     Set a variable (see the discussion	below).

     ~v	     List all variables	and their values (if set).

     ~^Z     Stop tip (only available with job control).

     ~^Y     Stop only the ``local side'' of tip (only available with job con-
	     trol); the	``remote side''	of tip,	the side that displays output
	     from the remote host, is left running.

     ~?	     Get a summary of the tilde	escapes.

     To	find the system	description, and thus the operating characteristics of
     system-name, tip searches for a system description	with a name identical
     to	system-name.  The search order is as follows:

	   1.	If the environment variable REMOTE does	not start with a `/'
		it is assumed to be a system description, and is considered
		first.

	   2.	If the environment variable REMOTE begins with a `/' it	is
		assumed	to be a	path to	a remote(5) database, and the speci-
		fied database is searched.

	   3.	The default remote(5) database,	/etc/remote, is	searched.

     See remote(5) for full documentation on system descriptions.

     The br capability is used in system descriptions to specify the baud rate
     with which	to establish a connection.  If the value specified is not
     suitable, the baud	rate to	be used	may be given on	the command line, e.g.
     ``tip -300	mds''.

     When tip establishes a connection,	it sends out the connection message
     specified in the cm capability of the system description being used.

     When tip prompts for an argument, for example during setup	of a file
     transfer, the line	typed may be edited with the standard erase and	kill
     characters.  A null line in response to a prompt, or an interrupt,	will
     abort the dialogue	and return the user to the remote machine.

     The tip utility guards against multiple users connecting to a remote sys-
     tem by opening modems and terminal	lines with exclusive access, and by
     honoring the locking protocol used	by uucico(8) (ports/net/freebsd-uucp).

     During file transfers tip provides	a running count	of the number of lines
     transferred.  When	using the ~> and ~< commands, the eofread and eofwrite
     variables are used	to recognize end-of-file when reading, and specify
     end-of-file when writing (see below).  File transfers normally depend on
     hardwareflow or tandem mode for flow control.  If the remote system does
     not support hardwareflow or tandem	mode, echocheck	may be set to indicate
     that tip should synchronize with the remote system	on the echo of each
     transmitted character.

     When tip must dial	a phone	number to connect to a system, it will print
     various messages indicating its actions.  The tip utility supports	a
     variety of	auto-call units	and modems with	the at capability in system
     descriptions.

     Support for Ventel	212+ (ventel), Hayes AT-style (hayes), USRobotics
     Courier (courier),	Telebit	T3000 (t3000) and Racal-Vadic 831 (vadic)
     units is enabled by default.

     Support for Bizcomp 1031[fw] (biz31[fw]), Bizcomp 1022[fw]	(biz22[fw]),
     DEC DF0[23]-AC (df0[23]), DEC DN-11 (dn11)	and Racal-Vadic	3451 (v3451)
     units can be added	by recompiling tip with	the appropriate	defines.

     Note that if support for both the Racal-Vadic 831 and 3451	is enabled,
     they are referred to as the v831 and v3451, respectively.	If only	one of
     the two is	supported, it is referred to as	vadic.

   Variables
     The tip utility maintains a set of	variables which	control	its operation.
     Some of these variables are read-only to normal users (root is allowed to
     change anything of	interest).  Variables may be displayed and set through
     the ~s escape.  The syntax	for variables is patterned after vi(1) and
     Mail(1).  Supplying ``all'' as an argument	to the set command displays
     all variables readable by the user.  Alternatively, the user may request
     display of	a particular variable by attaching a `?' to the	end.  For
     example, ``escape?'' displays the current escape character.

     Variables are numeric, string, character, or boolean values.  Boolean
     variables are set merely by specifying their name;	they may be reset by
     prepending	a `!' to the name.  Other variable types are set by concate-
     nating an `=' and the value.  The entire assignment must not have any
     blanks in it.  A single set command may be	used to	interrogate as well as
     set a number of variables.	 Variables may be initialized at run time by
     placing set commands (without the ~s prefix) in the initialization	file
     ~/.tiprc; the -v option additionally causes tip to	display	the sets as
     they are made.  Certain common variables have abbreviations.  The follow-
     ing is a list of common variables,	their abbreviations, and their default
     values:

     baudrate
	     (num) The baud rate at which the connection was established;
	     abbreviated ba.

     beautify
	     (bool) Discard unprintable	characters when	a session is being
	     scripted; abbreviated be.

     dialtimeout
	     (num) When	dialing	a phone	number,	the time (in seconds) to wait
	     for a connection to be established; abbreviated dial.

     echocheck
	     (bool) Synchronize	with the remote	host during file transfer by
	     waiting for the echo of the last character	transmitted; default
	     is	off.

     eofread
	     (str) The set of characters which signify an end-of-transmission
	     during a ~< file transfer command;	abbreviated eofr.

     eofwrite
	     (str) The string sent to indicate end-of-transmission during a ~>
	     file transfer command; abbreviated	eofw.

     eol     (str) The set of characters which indicate	an end-of-line.	 The
	     tip utility will recognize	escape characters only after an	end-
	     of-line.

     escape  (char) The	command	prefix (escape)	character; abbreviated es;
	     default value is `~'.

     exceptions
	     (str) The set of characters which should not be discarded due to
	     the beautification	switch;	abbreviated ex;	default	value is
	     ``\t\n\f\b''.

     force   (char) The	character used to force	literal	data transmission;
	     abbreviated fo; default value is `^P'.

     framesize
	     (num) The amount of data (in bytes) to buffer between file	system
	     writes when receiving files; abbreviated fr.

     hardwareflow
	     (bool) Whether hardware flow control (CRTSCTS) is enabled for the
	     connection; abbreviated hf; default value is off.

     host    (str) The name of the host	to which you are connected; abbrevi-
	     ated ho.

     linedisc
	     (num) The line discipline to use; abbreviated ld.

     prompt  (char) The	character which	indicates an end-of-line on the	remote
	     host; abbreviated pr; default value is `\n'.  This	value is used
	     to	synchronize during data	transfers.  The	count of lines trans-
	     ferred during a file transfer command is based on receipt of this
	     character.

     raise   (bool) Upper case mapping mode; abbreviated ra; default value is
	     off.  When	this mode is enabled, all lowercase letters will be
	     mapped to uppercase by tip	for transmission to the	remote
	     machine.

     raisechar
	     (char) The	input character	used to	toggle uppercase mapping mode;
	     abbreviated rc; not set by	default.

     record  (str) The name of the file	in which a session script is recorded;
	     abbreviated rec; default value is tip.record.

     script  (bool) Session scripting mode; abbreviated	sc; default is off.
	     When script is true, tip will record everything transmitted by
	     the remote	machine	in the script record file specified in record.
	     If	the beautify switch is on, only	printable ASCII	characters
	     will be included in the script file (those	characters between 040
	     and 0177).	 The variable exceptions is used to indicate charac-
	     ters which	are an exception to the	normal beautification rules.

     tabexpand
	     (bool) Expand tabs	to spaces during file transfers; abbreviated
	     tab; default value	is false.  Each	tab is expanded	to 8 spaces.

     tandem  (bool) Use	XON/XOFF flow control to throttle data from the	remote
	     host; abbreviated ta.  The	default	value is true unless the nt
	     capability	has been specified in /etc/remote, in which case the
	     default value is false.

     verbose
	     (bool) Verbose mode; abbreviated verb; default is true.  When
	     verbose mode is enabled, tip prints messages while	dialing, shows
	     the current number	of lines transferred during a file transfer
	     operations, and more.

ENVIRONMENT
     HOME    The home directory	to use for the ~c command.

     HOST    The default value for system-name if none is specified via	the
	     command line.

     PHONES  A path to a phones(5) database.

     REMOTE  A system description, or an absolute path to a remote(5) system
	     description database.

     SHELL   The name of the shell to use for the ~! command; default value is
	     ``/bin/sh''.

FILES
     ~/.tiprc		     initialization file
     tip.record		     record file
     /etc/phones	     default phones(5) file
     /etc/remote	     global remote(5) database
     /var/log/aculog	     line access log
     /var/spool/lock/LCK..*  lock file to avoid	conflicts with uucp(1)
			     (ports/net/freebsd-uucp)

SEE ALSO
     cu(1), phones(5), remote(5)

HISTORY
     The tip command appeared in 4.2BSD.

BUGS
     The full set of variables is undocumented and should, probably, be	pared
     down.

FreeBSD	9.3			August 31, 2006			   FreeBSD 9.3

NAME | SYNOPSIS | DESCRIPTION | ENVIRONMENT | FILES | SEE ALSO | HISTORY | BUGS

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