Installation guide

you do not specify the −t flag, the cmx command
runs until you terminate it by pressing Ctrl/C in
the foreground.
−l
line
Specifies the line or lines you want to test. The
possible values for
line are found in the /dev
directory and are the last two characters of the tty
device name. For example, if you want to test the
communications system for devices named tty02,
tty03, and tty14, specify 02, 03, and 14,
separated by spaces, for the
line variable. In
addition, the line variable can specify a range of
lines to test. For example, 00-08.
The following example exercises communication lines tty22 and tty34 for
45 minutes in the background:
# cmx -l 22 34 -t45 &
The following example exercises lines tty00 through tty07 until you
press Ctrl/C:
# cmx -l 00-07
F–20 Using the System Exercise Tools