irc_loadavg_bot.js

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

String.prototype.startsWith = function(prefix) {
	return this.indexOf(prefix) === 0;
}

// loadbot config
var _server     = "yourserver";
var _nick       = "loadbot";
var _chan       = "#yourchannel";
var _irc_server = "irc.ozinger.org";
var _irc_port   = "6667";
// loadbot config

irc_con = net.connect(_irc_port, _irc_server);
irc_con.on("data", function(data) { proc(data, this); }).on("error", function(e) { console.log(e.code); });

irc_con.write("NICK "+_nick+"\r\n");
irc_con.write("USER loadbotjs 8 * :loadavg bot - "+_server+"\r\n");

function proc(buf, con) {
	arr = buf.toString().split("\r\n");
	for(i in arr) {
		data = arr[i];
		
		msg = data.split(" ");
		if(msg[0] == "PING") {
			res = data.match(/^PING :(.*)/);
			con.write("PONG "+res[1]+"\r\n");
		}
		else if(msg[1] == "001") {
			con.write("JOIN "+_chan+"\r\n");
		}
		else if(msg[1] == "INVITE") {
			res = data.match(/^:(.*) INVITE (.*) :(.*)/);
			con.write("JOIN "+res[3]+"\r\n");
		}
		else if(msg[1] == "PRIVMSG") {
			res = data.match(/^:(.*) PRIVMSG (.*) :(.*)/);
			
			who = res[1]
			chan = res[2];
			msg = res[3];
			
			if(msg == "!로드" || msg == "!loadavg" || msg.startsWith(_nick)) {
				exec("uptime", function(err, stdout, stderr) {
					con.write("PRIVMSG "+chan+" :"+_server+" |"+stdout.replace("\n","")+"\r\n");
				});
			}
		}
	}
}