Toggle web proxy via command-line (cli) in Mac OS X

proxytoggle.sh

# use sudo else you'll need to deal with a popup auth dialog.
# 
# you can also add yourself to the sudoers file with NOPASSWD for this particular command.
# e.g. genevera ALL = (genevera) NOPASSWD: /usr/sbin/networksetup
# then you won't need to enter a pw at all for this :)
proxytoggle () {
	if [[ $(networksetup -getwebproxy Wi-Fi | grep -c Yes) -eq 1 ]]
	then
		export http_proxy=
		export https_proxy=
		for _proxy in webproxy securewebproxy
		do
			sudo networksetup -set${_proxy}state Wi-Fi off
		done
	else
		export http_proxy=http://$CACHE_IP:$CACHE_PORT
		export https_proxy=https://$CACHE_IP:$CACHE_PORT
		for _proxy in webproxy securewebproxy
		do
			sudo networksetup -set${_proxy}state Wi-Fi on
		done
	fi
	networksetup -getwebproxy Wi-Fi
}