You can see which wireless networks are active in your neighborhood. This is handy if you are monitoring an office environment for Rouge APs installed against the company's policy.
To do this, type the following code in the SSH terminal:
iwlist wlan0 scan
You will see the following code listing:
Cell 01 - Address: 00:11:22:33:44:55 ESSID:"bills_network" Mode:Master Channel:11 Frequency:2.462 GHz (Channel 11) Quality=100/100 Signal level:-47dBm Noise level=- 100dBm Encryption key:off . . .
You can see your wireless hub's link quality continuously on the screen by entering the following code:
watch -n 1 cat /proc/net/wireless
Or only once by entering the following code:
Wavemon is a simple ASCII ...