Usage
Javascript:
require('iwlist-scan')('<my-wlan-interface>')
returns an object with parsed output from the command iwlist scan my-wlan-interface
Shell:
./scan.sh my-wlan-interface
outputs a line for each access point found
first argument can be omitted which defaults to 'wlp2s0' <- override with your wlan interface
Prerequisites
iwlist from wireless-tools (tested with debian and ubuntu linux)