TIP(1C) 																   TIP(1C)

NAME

       tip, cu - connect to a remote system

SYNOPSIS

       tip [ -v ] [ -speed ] system-name
       tip [ -v ] [ -speed ] phone-number
       cu phone-number [ -t ] [ -s speed ] [  -a acu ] [ -l line ] [ -# ]

DESCRIPTION

       Tip  and cu establish 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 equivalent) to which you wish to connect.   The  preferred  interface	is
       tip.   The  cu  interface is included for those people attached to the ``call UNIX'' command of version 7.  This manual page describes only
       tip.

       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 ~.	 Drop the connection and exit (you may still be logged in on the remote machine).

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

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

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

       ~<	 Copy  file from remote to local.  Tip 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.  The put command causes the remote UNIX system to run the command string ``cat > 'to''', while
		 tip  sends  it the ``from'' file.  If the ``to'' file isn't specified the ``from'' file name is used.	This command is actually a
		 UNIX specific version of the ``~>'' command.

       ~t from [ to ]
		 Take a file from a remote UNIX host.  As in the put command the ``to'' file defaults to the ``from'' file name if it isn't speci-
		 fied.	The remote host executes the command string ``cat 'from';echo ^A'' to send the file to tip.

       ~|	 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.

       ~#	 Send a BREAK to the remote system.  For systems which don't support 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).

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

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

       ~?	 Get a summary of the tilde escapes

       Tip  uses  the file /etc/remote to find how to reach a particular system and to find out how it should operate while talking to the system;
       refer to remote(5) for a full description.  Each system has a default baud rate with which to establish a connection.  If this value is not
       suitable, the baud rate to be used may be specified on the command line, e.g. ``tip -300 mds''.

       When  tip  establishes  a  connection  it  sends  out  a  connection message to the remote system; the default value, if any, is defined in
       /etc/remote.

       When tip prompts for an argument (e.g. during setup of a file transfer) the line typed may be edited with the standard erase and kill char-
       acters.	A null line in response to a prompt, or an interrupt, will abort the dialogue and return you to the remote machine.

       Tip guards against multiple users connecting to a remote system by opening modems and terminal lines with exclusive access, and by honoring
       the locking protocol used by uucp(1C).

       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 trans-
       fers normally depend on tandem mode for flow control.  If the remote system does not support tandem mode, ``echocheck'' may be set to indi-
       cate 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.	Tip supports the DEC DN-11
       and Racal-Vadic 831 auto-call-units; the DEC DF02 and DF03, Ventel 212+,  Racal-Vadic  3451,  and  Bizcomp  1031  and  1032  integral  call
       unit/modems.

       VARIABLES

       Tip  maintains  a  set  of variables which control its operation.  Some of these variable 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 concatenating 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 a file .tiprc in one's home directory).  The -v option causes tip to display
       the sets as they are made.  Certain common variables have abbreviations.  The following is a list of common variables, their abbreviations,
       and their default values.

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

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

       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 and end-of-tranmission 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.  Tip 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
	      ``	
f''.

       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.

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

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

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

       raisechar
	      (char) The input character used to toggle upper case mapping mode; abbreviated rc; default value is `^A'.

       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 betwee 040 and 0177).  The variable exceptions is used to indicate characters 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.

       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.

       SHELL
	      (str) The name of the shell to use for the ~! command; default value is ``/bin/sh'', or taken from the environment.

       HOME
	      (str) The home directory to use for the ~c command; default value is taken from the environment.

FILES

       /etc/remote		global system descriptions
       /etc/phones		global phone number data base
       ${REMOTE}		private system descriptions
       ${PHONES}		private phone numbers
       ~/.tiprc 		initialization file.
       /usr/spool/uucp/LCK..*	lock file to avoid conflicts with uucp

DIAGNOSTICS

       Diagnostics are, hopefully, self explanatory.

SEE ALSO

       remote(5), phones(5)

BUGS

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

4th Berkeley Distribution					    May 5, 1986 							   TIP(1C)