How To : Use wpa_cli To Connect To A Wireless Network
http://sirlagz.net/2012/08/27/how-to-use-wpa_cli-to-connect-to-a-wireless-network/

wpa_supplicant
https://wiki.archlinux.org/index.php/Wpa_supplicant

https://wiki.archlinux.org/index.php/Network_configuration#Network_interfaces