Rename files

renamer.js

'use strict';

/*
 * Module Dependencies
 */

var fs = require('fs'),
    join = require('path').join,
    DIR_PATH = 'images',
    NAME_MODEL = 'img';

function renamer(path, name) {
    fs.readdir(path, function(err, files) {
        if (err) {
            throw err;
        }
        for (var i = 0; i < files.length; i++) {
            var newName = name + i;
            fs.renameSync(join(path, files[i]), join(path, newName.toUpperCase()));
            console.log('Rename > ' + files[i] + ' to > ' + newName.toUpperCase());
        };
    });
};

renamer(DIR_PATH, NAME_MODEL);