Terminus linux # iwconfig wlan0
wlan0     IEEE 802.11g  ESSID:"gnugpl5"  
          Mode:Managed  Frequency:2.427 GHz  Access Point: CE:FE:3B:75:1A:AC   
          Bit Rate=54 Mb/s   Tx-Power=27 dBm   
          Retry min limit:7   RTS thr:off   Fragment thr=2346 B   
          Encryption key:B3D1-8DF2-7A12-0EB8-EE62-ADBA-59BF-D41D [2]
          Link Quality=99/100  Signal level=-24 dBm  Noise level=-61 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0