Aircrack-ng Device Busy Fix

#!/bin/sh
# Device-Busy.sh
#
#
# Created by Adrian on 7/12/11.
# Modified by Adrian Woolley, DishingTech. All rights reserved. http://www.dishingtech.blogspot.com/

# Device busy

    sudo iwconfig wlan0
    sudo ifconfig wlan0 down
    sudo iwconfig wlan0 mode monitor
    sudo ifconfig wlan0 up
    sudo iwconfig wlan0
    sudo airodump-ng wlan0
    sleep 30