node.js批量修改图片名

1: "use strict";

       2:  

       3: var fs = require('fs');

       4:  

       5: var args = process.argv.splice(2);

       6: var fileDirectory = args[0] || 'xxx';

       7:  

       8: if (fs.existsSync(fileDirectory)) {

       9:     var files = fs.readdirSync(fileDirectory);

      10:  

      11:     files.forEach(function(file) {

      12:         var filePath = fileDirectory + "/" + file;

      13:         

      14:         if (/\.jpg$/.test(file)) {

      15:             var fileName = file.replace(/(\-)(\d+)(\_s\.jpg)/, function() {    

      16:                 return arguments[1] + ((arguments[2] | 0) + 1714) + arguments[3];

      17:             });

      18:  

      19:             var newFilePath = fileDirectory + "/" + fileName;

      20:  

      21:             fs.rename(filePath, newFilePath, function(err) {

      22:                 if (err) throw err;

      23:  

      24:                 console.log(fileName + ' ok~');

      25:             });

      26:         }

      27:     });

      28:  

      29: } else {

      30:     console.log(fileDirectory + "  Not Found!");

      31: }