Node.js - Append regexp to file(s)

append.js

var glob = require('glob');
var fs = require('fs');

// Find file(s)
glob('fileName.ext', function(err, files) {
    if (err) { throw err; }
    files.forEach(function(item, index, array) {
        console.log(item + ' found.');
        // Read file(s)
        var file = fs.readFileSync(item, 'utf8');
        console.log('Before: ' + file);
        // Append text to file(s)
        fs.appendFileSync(item, 'text to append');
        // Read file(s)
        file = fs.readFileSync(item, 'utf8');
        console.log('After: ' + file);
    });
});