auxTelem.sh - Shell script passed to /etc/inittab to enable the secondary radio port as a Linux tty

auxTelem.sh [-d device] [-b baud] [-t timeout] [-s sleep_time]
            [-p power_bit] [-y terminal_emulation]

device = ttySX13
baud = 115200
timeout = 30 (seconds)
sleep_time = 300 (seconds)
power_bit = 0
terminal_emulation = "vt100"

auxTelem.sh is not an end-user utility -- it's a script that is passed to /etc/inittab to implement the secondary radio port as a Linux tty device.  It's documented here so that system integrators will know what command-line arguments are available.

-d device - name of serial port to use. Passed directly to getty.  A leading "/dev/" is not required
-b baud - baud rate of the serial port
-t timeout - timeout parameter passed to getty.  Getty will print the login prompt and then wait for this number of seconds before timing out.  After that time, the script will turn off the radio power.
-s sleep_time - number of seconds that the script will sleep after getty returns.  This becomes the amount of time that the radio will be off before inittab reruns the script.
-p power_bit - bit number passed to rfpower to turn on/off  the radio power.
-y terminal_emulation - string passed to getty to indicate terminal type to emulate.

This script does not depend on any environment variables.