problem with usb driver

I wrote a little shell script to mount the USB stick, but I dont know if this is the best solution. I wanted to port autofs first but it was to heavyweight.

For the shell script I use /proc/partitions and /proc/mounts to automount.

# !/bin/sh

while true

do

grep sda /proc/partitions > /dev/zero

if test $? -eq 0; then

grep sda /proc/mounts > /dev/zero

if test $? -eq 1; then

echo "*** mount usbdisk ***"

mount -n -t vfat /dev/sda /mnt/usb

fi

else

grep sda /proc/mounts > /dev/zero

if test $? -eq 0; then

echo "*** unmount usbdisk ***"

umount -n /mnt/usb

fi

fi

sleep 1

done