var http = require("http")
var spawn = require("child_process").spawn;
http.createServer(function(req,res){
    var tail = spawn("tail", ["-f", "/var/log/messages"]);
    res.writeHead(200,{"Content-Type": "text/plain"});
    tail.stdout.on("data", function (chunk) {
        res.write(chunk);
    });
    tail.on("exit", function (status) {
        if (status !== 0) 
        {
              console.error("tail exited with code " + status);
              exit(1);
        }
        res.end();
    });
}).listen(8000);