Using if-then commands on a UUID

[Agent-X]

How do I setup an if-then command to examine if a device with a particular UUID is present?

Example:

if [ -e UUID=FE45-BA45 ]
then
sudo mkdir /media/userdrive/
sudo mount -t ext3 -U FE45-BA45 /media/userdrive/
else
echo
echo "Drive not present."
echo
fi

Thanks again!

[Agent-X]

Another win for the UUID system:

Solved.
blkid in puppy, probably vol_id in debian-types

#!/bin/sh
blkid > /home/username/.uuidcheck
#############################
if grep 443A-426C "/home/username/.uuidcheck"
then
  mkdir /media/woah
  mount -t vfat -U 443A-426C /media/woah
fi

This could be used for more devices, just add more if-then commands to the same script.