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wifi_iw
# iw help # help
# iw list # Obtain the functions of all devices, such as bandwidth information (2.4GHz, and 5GHz), and 802.11n information
# iw dev wlan0 scan # scan
# iw event # listen event
# iw dev wlan0 link # get link status
# iw wlan0 connect foo # Connect to an AP with encryption disabled, where its SSID is foo
# iw wlan0 connect foo 2432 # Suppose you have two AP SSIDs are foo, you know you want to connect to channel 2432
# iw wlan0 connect foo keys 0:abcde d:1:0011223344 # connect to AP using WEP
# iw dev wlan1 station dump #