tip, cu − connect to a remote system [ ] [ ] system-name
[ ] [ ] phone-number
phone-number [ ] [ ] [ ] [ ] [ ] and 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 The interface is included for those people attached to the “call UNIX” command of version 7.  This manual page describes only 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: 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.  prompts for the name of a local file to transmit.  Copy file from remote to local.  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 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 specified.  The remote host executes the command string “cat ’from’;echo ^A” to send the file to 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 call the break is simulated by a sequence of line speed changes and DEL characters.  Set a variable (see the discussion below).  Down load a program to a machine speaking the MIPS serial line protocol.  Tip prompts for the name of the a.out format file to down load.  Stop (only available with job control).  Stop only the “local side” of (only available with job control); the “remote side” of the side that displays output from the remote host, is left running.  Get a summary of the tilde escapes 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 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 establishes a connection it sends out a connection message to the remote system; the default value, if any, is defined in /etc/remote. When prompts for an argument (e.g. 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 you to the remote machine. 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 During file transfers 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 tandem mode for flow control.  If the remote system does not support tandem mode, “echocheck” may be set to indicate should synchronize with the remote system on the echo of each transmitted character. When must dial a phone number to connect to a system it will print various messages indicating its actions. 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. maintains a set of 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 and 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 in one’s home directory).  The option causes 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.
(bool) If set, append script output to record file.  Otherwise, truncate record file when initiating scripting.  Default is
(bool) Discard unprintable characters when a session is being scripted; abbreviated
(num) The baud rate at which the connection was established; abbreviated
(bool) If set, transfer data in binary format for down load command; otherwise, transfer data in 7 bit ascii format.  Default is
(num) When dialing a phone number, the time (in seconds) to wait for a connection to be established; abbreviated
(bool) Display remote output when scripting is enabled.  Default is
(bool) Synchronize with the remote host during file transfer by waiting for the echo of the last character transmitted; default is
(str) The set of characters which signify and end-of-tranmission during a ~< file transfer command; abbreviated
(str) The string sent to indicate end-of-transmission during a ~> file transfer command; abbreviated
(str) The set of characters which indicate an end-of-line. will recognize escape characters only after an end-of-line.
(char) The command prefix (escape) character; abbreviated default value is ‘~’.
(str) The set of characters which should not be discarded due to the beautification switch; abbreviated default value is “\t\n\f\b”.
monitor and thus persist across system power up/down cycles and resets. The baud rate for tty(0) and tty(1) may also be cycled among the baud rates, 110, 300, 1200, 2400, 4800, 9600, or 19200 baud by entering a BREAK.  Baud rates changes made by BREAK’s are temporary until the next reset or until a new program is loaded. To permanently change the baud rate, change either the lbaud or rbaud environment variables from the prom monitor. abbreviated default value is ‘^P’.
(num) The amount of data (in bytes) to buffer between file system writes when receiving files; abbreviated
(str) The name of the host to which you are connected; abbreviated
(char) The character which indicates and end-of-line on the remote host; abbreviated default value is ‘\n’.  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.
(bool) Upper case mapping mode; abbreviated default value is When this mode is enabled, all lower case letters will be mapped to upper case by for transmission to the remote machine.
(char) The input character used to toggle upper case mapping mode; abbreviated default value is ‘^A’.
(str) The name of the file in which a session script is recorded; abbreviated default value is “tip.record”.
(bool) Session scripting mode; abbreviated default is When is will record everything transmitted by the remote machine in the script record file specified in If the switch is on, only printable ASCII characters will be included in the script file (those characters betwee 040 and 0177).  The variable is used to indicate characters which are an exception to the normal beautification rules.
(bool) Expand tabs to spaces during file transfers; abbreviated default value is Each tab is expanded to 8 spaces.
(bool) Verbose mode; abbreviated default is When verbose mode is enabled, prints messages while dialing, shows the current number of lines transferred during a file transfer operations, and more.
(str) The name of the shell to use for the ~! command; default value is “/bin/sh”, or taken from the environment.
(str) The home directory to use for the ~c command; default value is taken fro