See available wireless access points in the terminal?
Solution 1:
You can use the command:
sudo iwlist wlan0 scan
This assumes that wlan0 is your wireless interface. To find out if it is or not type sudo iwconfig which will give you a list of your network interfaces and tell you which ones have wireless extensions enabled.
Solution 2:
I know this is a six years old question and its already answered but i went in the same problem on a debian system and use this command:
nmcli dev wifi list