Node.js - Rename file(s)

rename.js

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

// Find file(s)
glob('fileName.ext', function(err, files) {
    if (err) { throw err; }
    // Check for file(s)
    if (Boolean(files.length)) {
        files.forEach(function(item, index, array) {
            var newItem = item.replace('regexp', 'replacement');
            if (item !== newItem) {
                fs.rename(item, newItem, function(err) {
                    if (err) { throw err; }
                    console.log(item + ' renamed to ' + newItem);
                });
            } else {
                console.log('Try the replace() method to rename file(s).');
            }
        });
    } else {
        console.log('File(s) not found.');
    }
});