自动mountUSB移动硬盘shell

#!/bin/bash

imount=`df -k|grep sdc2|grep mnt|wc -l`
if [ $imount -lt 1 ]
then
  mount -t ext3 /dev/sdc2 /mnt/usb
  if [ $? -ne 0 ]
  then
    exit 1
  fi
fi