ct - spawn getty to a remote terminal (call terminal)
ct [-w n] [-x n] [-h] [-v] [-s speed] telno...
ct dials telno, the telephone number of a modem that is attached to a
terminal, and spawns a getty(1M) process to that terminal.
ct tries each line listed in file /etc/uucp/Devices until it finds an
available line with appropriate attributes or runs out of entries. If
no lines are free, ct asks whether it should wait for a line, and if
so, how many minutes it should wait before giving up. ct searches
again for an available line at one-minute intervals until the
specified limit is exceeded. Note that normally, ct disconnects the
current tty line, so that the line can answer the incoming call. This
is because ct assumes that the current tty line is connected to the
terminal to spawn the getty process.
The telno argument specifies the telephone number, which can be
composed of characters 0 through 9, -, =, *, and #. Use equal signs
to signify secondary dial tones and minus signs for delays at
appropriate places. The maximum length of telno is 31 characters. If
more than one telephone number is specified, ct tries each in
succession until one answers; this is useful for specifying alternate
When ct disconnects the current line, getty should not be spawned on
this line if ct is going to make use of the same line to reconnect.
To do this, set the entry for this line in the inittab file to uugetty
instead of getty (see inittab(4)).
ct recognizes the following options and command-line arguments:
-wn Instruct ct to wait for a line a maximum of n
number of minutes, if lines are busy. If this
option is specified, ct does not query the user
about whether to wait for a line.
-xn Produce detailed output from program execution on
the standard error output. This option is used
for debugging. The debugging level n is a single
digit; the most useful value is -x9.
-h Prevent ct from disconnecting ("hanging up") the
current tty line. This option is necessary if the
user is using a different tty line than the one
used by ct to spawn the getty.
Hewlett-Packard Company - 1 - HP-UX Release 11i: November 2000
-v Verbose mode. The -v option is used with the -h
option and causes ct to send a running narrative
to the standard error output stream.
-sspeed Set the data rate 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 begins with the letter n the line is
dropped. Otherwise, getty is restarted and the login: prompt is
Of course, the destination terminal must be attached to a modem that
can automatically answer incoming calls.
cu(1), login(1), uucp(1), getty(1M), uugetty(1M).
Hewlett-Packard Company - 2 - HP-UX Release 11i: November 2000