CT(C) XENIX System V CT(C)
Name
ct - spawn getty to a remote terminal
Syntax
ct [ -wn ] [ -xn ] [ -h ] [ -v ] [ -sspeed ] telno ...
Description
ct dials the telephone number of a modem that is attached to
a terminal, and spawns a getty process to that terminal.
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 thru 9, -, =, *,
and #. The maximum length telno is 58 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 ACU line listed in the file
/usr/lib/uucp/Devices until it finds an available line with
appropriate attributes or runs out of entries. If there are
no free lines, ct will ask if it should wait for one, and if
so, for how many minutes it should wait before it gives up.
ct will continue to try to open the dialers at one-minute
intervals until the specified limit is exceeded. The
dialogue may be overridden by specifying the -wn option,
where n is the maximum number of minutes that ct is to wait
for a line.
The -xn option is used for debugging; it produces a detailed
output of the program execution on stderr. The debugging
level, n, is a single digit; -x9 is the most useful value.
If the -v option is used, ct will send a running narrative
to the standard error output stream.
Normally, ct will hang up the current line, so the line can
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.
The data rate may be set with the -s option, where speed is
expressed in baud. The default rate is 1200.
After the user on the destination terminal logs out, ct
prompts, Reconnect? If the response does not begin with the
letter y, the line will be dropped; otherwise, getty will be
started again and the login: prompt will be printed.
To log out properly, the user must type control D.
Of course, the destination terminal must be attached to a
modem that can answer the telephone.
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CT(C) XENIX System V CT(C)
Files
/usr/lib/uucp/Devices
/usr/lib/uucp/LCK..(tty-device)
/usr/adm/ctlog
See Also
cu(C), login(M), uucp(C), getty(M).
Notes
In hangup mode (-h not specified), when a suitable dialer
has been allocated, ct prompts ``Proceed to hang-up?'' If
the response does not begin with the letter y, the program
simply exits. If you are logged in on a computer through a
local terminal and you want to connect a remote terminal to
the computer, you should use nohup with ct to accomplish
this:
nohup ct-h -sspeed phone
After the command is executed, a login prompt is displayed
on the remote terminal. The user can then log in and work
on the computer just as on a local terminal.
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