nodeTail.js

var sys = require('sys'),
    net = require('net'),
    spawn = require('child_process').spawn,
    http = require('http');
sys.puts('nMy process PID: ' + process.pid + 'n');
var tail = spawn('tail', ['-f', 'C:\Users\grigo\Desktop\node.js\access.log']);
sys.puts('Start tailing');
tail.stdout.addListener('data', function (data) {
    sys.puts(data);
});
http.createServer(function (req, res) {
    res.sendHeader(200, {'Content-Type': 'text/plain'});
    tail.stdout.addListener('data', function (data) {
        res.write(data);
    });
}).listen(80);