ct(1)
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ct Command
spawn getty to a remote terminal
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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 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 /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.
-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.
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ct(1)
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 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
/usr/lib/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)).
DG/UX 4.00 Page 2
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