ifconfig wlan0 list sta
ADDR               AID CHAN RATE RSSI IDLE  TXSEQ  RXSEQ CAPS FLAG        
1e:9d:72:d6:ca:b9   25    1  26M 25.5    0     13   2960 EP   AQHTRstrU    RSN BSSLOAD APCHANREP APCHANREP HTCAP WPS WME
root@rpi:~ # ifconfig wlan0 
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=0
        ether 00:e0:4c:0f:e8:53
        groups: wlan
        ssid Warren channel 1 (2412 MHz 11g ht/20) bssid 1e:9d:72:d6:ca:b9
        regdomain FCC country US authmode WPA2/802.11i privacy ON
        deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 7 scanvalid 60
        protmode CTS ht20 ampdulimit 64k ampdudensity 4 shortgi -stbc -ldpc
        -uapsd wme roaming MANUAL
        parent interface: rtwn0
        media: IEEE 802.11 Wireless Ethernet MCS mode 11ng
        status: associated
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>