CT(1C) Communication Commands CT(1C)

NAME

ct - spawn login to a remote terminal

SYNOPSIS

ct [options] telno...

DESCRIPTION

The ct utility dials the telephone number of a modem that is attached
to a terminal and spawns a login process to that terminal. The telno
is a telephone number, with equal signs for secondary dial tones and
minus signs for delays at appropriate places. (The set of legal
characters for telno is 0 through 9, -, =, *, and #. The maximum
length telno is 31 characters). If more than one telephone number is
specified, ct will try each in succession until one answers; this is
useful for specifying alternate dialing paths.


ct will try each line listed in the file /etc/uucp/Devices until it
finds an available line with appropriate attributes, or runs out of
entries.


After the user on the destination terminal logs out, there are two
things that could occur depending on what type of port monitor is
monitoring the port. In the case of no port monitor, ct prompts:
Reconnect? If the response begins with the letter n, the line will be
dropped; otherwise, ttymon will be started again and the login:
prompt will be printed. In the second case, where a port monitor is
monitoring the port, the port monitor reissues the login: prompt.


The user should log out properly before disconnecting.

OPTIONS

The following options are supported:

-h
Normally, ct will hang up the current line so that it can
be used to answer the incoming call. The -h option will
prevent this action. The -h option will also wait for the
termination of the specified ct process before returning
control to the user's terminal.


-sspeed
The data rate may be set with the -s option. speed is
expressed in baud rates. The default baud rate is 1200.


-v
If the -v (verbose) option is used, ct will send a
running narrative to the standard error output stream.


-wn
If there are no free lines ct will ask if it should wait,
and for how many minutes, before it gives up. ct will
continue to try to open the dialers at one-minute
intervals until the specified limit is exceeded. This
dialogue may be overridden by specifying the -wn option. n
is the maximum number of minutes that ct is to wait for a
line.


-xn
This option is used for debugging; it produces a detailed
output of the program execution on stderr. n is a single
number between 0 and 9. As n increases to 9, more detailed
debugging information is given.

FILES

/etc/uucp/Devices


/var/adm/ctlog

SEE ALSO

login(1), cu(1C), uucp(1C), attributes(7), ttymon(8)

NOTES

The ct program will not work with a DATAKIT Multiplex interface.


For a shared port, one used for both dial-in and dial-out, the ttymon
program running on the line must have the -r and -b options specified
(see ttymon(8)).

September 14, 1992 CT(1C)