获取mac下的ip地址

ip.js

#! /usr/bin/env node

var exec = require("child_process").exec;

exec("ifconfig", function(err, stdout){
	if(err){ console.log(err); return; }

	var string = stdout;

	//inet 10.68.141.98 netmask 0xfffffc00 broadcast 10.68.143.255
	var reg = /inet\s(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\snetmask.+broadcast/;

	if(reg.test(string)){
		console.log(RegExp.$1);
	}
});