ct(1) DG/UX 4.30 ct(1)
NAME
ct - spawn getty to a remote terminal
SYNOPSIS
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 for 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. 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.
-wn 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.
-xn 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 in the range
0-9; -x9 is the most useful value.
-h 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.
-v If the -v option is used, ct will send a running
narrative to the standard error output stream.
-s 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, there
are two things that could occur depending on what type of
getty is on the line (getty or uugetty). For the first
case, ct prompts, Reconnect? If the response begins with
the letter n, the line will be dropped; otherwise, getty
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ct(1) DG/UX 4.30 ct(1)
will be started again and the login: prompt will be
printed. In the second case, there is already a getty
(uugetty) on the line, so the login: message will appear.
To log out properly, the user must type control D.
Note that the destination terminal must be attached to a
modem that can answer the telephone.
FILES
/etc/uucp/Devices
/usr/adm/ctlog
SEE ALSO
cu(1), login(1), uucp(1).
getty(1M), uugetty(1M) in the System Manager's Reference for
the DG/UX System.
BUGS
For a shared port, one used for both dial-in and dial-out,
the uugetty program running on the line must have the -r
option specified (see uugetty(1M)).
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