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

NAME
     tip - connect to a remote system

SYNOPSIS
     tip [-v] -speed system-name
     tip [-v] -speed phone-number

DESCRIPTION
     The tip command 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
     equivalent) to which you wish to connect.

     Available Option:

     -v      Set verbose mode.

     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 (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.  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.  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
           specified.  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.

     ~C    Fork a child process on the local system to perform special
           protocols such as XMODEM.  The child program will be run with the
           following somewhat unusual arrangement of file descriptors:
                 0 <-> local tty in
                 1 <-> local tty out
                 2 <-> local tty out
                 3 <-> remote tty in
                 4 <-> remote tty out

     ~#    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

     The tip utility 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
     (see remote(5)).

     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 characters.
     A null line in response to a prompt, or an interrupt, will abort the
     dialogue and return you to the remote machine.

     The tip utility 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 uucico(8).

     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 tandem mode for flow control.  If the remote system
     does not support tandem mode, ``echocheck'' may be set to indicate 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 modems
     that use the AT command set.  The tip utility uses the file /etc/modems
     to find out how to operate with a particular modem; refer to modems(5)
     for a full description.

   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
     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.

     chardelay     (num) Number of milliseconds to delay after the
                   transmission of each character; abbreviated cdelay.

     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.

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

     linedelay     (num) Number of milliseconds to delay after the
                   transmission of each line; abbreviated ldelay.

     login         (str) Pathname of a login shell script to run once
                   connected; standard input and output are redirected to the
                   remote host.  Leading tildes in the pathname are expanded
                   expansion; abbreviated li.

     logout        (str) Pathname of a shell script to run before
                   disconnecting; standard input and output are redirected to
                   the remote host.  Leading tildes in the pathname are
                   expanded expansion; abbreviated lo.

     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 transferred 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 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 between 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.

ENVIRONMENT
     The tip utility uses the following environment variables:

     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.

     HOST        Check for a default host if none specified.

     The variables ${REMOTE} and ${PHONES} are also exported.

FILES
     /etc/modems             Global modem configuration data base.
     /etc/remote             Global system descriptions.
     /etc/phones             Global phone number data base.
     ${REMOTE}               Private system descriptions.
     ${PHONES}               Private phone numbers.
     ~/.tiprc                Initialization file.
     tip.record              Record file.
     /var/log/aculog         Line access log.
     /var/spool/lock/LCK..*  Lock file to avoid conflicts with uucp(1).

DIAGNOSTICS
     Diagnostics are, hopefully, self explanatory.

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 11.0-PRERELEASE         April 18, 1994         FreeBSD 11.0-PRERELEASE

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

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