Realtek RTL8814AU monitor mode code example

Example 1: aircrack-ng rtl8812au

sudo ip link set wlan0 down
sudo iw dev wlan0 set type monitor
sudo ip link set wlan0 up

Example 2: aircrack-ng rtl8812au

ip link set wlan0 down
iw dev wlan0 set type monitor
ip link set wlan0 up