1sudo iwconfig wlan0 mode monitor && iwconfig
via airmon
1airmon-ng start wlan0
wlan0mon
here is your wifi in monitor mode. To disable, run airmon-ng stop wlan0mon
iwlist scan
wash -i wlan0mon --ignore-fcs
airodump-ng wlan0mon
1iwlist scanning
or
1airodump-ng wlan0
1airmon-ng start wlan0