var EasyFtp = require('easy-ftp');
var ftp = new EasyFTP();
var config = {
    host: '',
    port: 21,
    username: '',
    password: ''
};

ftp.connect(config);

 var filesFrom=['/file1.txt','/anotherFile.txt','/moreFiles.txt','/a.txt','/x.txt']
 var filesTo=['/archived/file1.txt','/archived/anotherFile.txt','/archived/moreFiles.txt','/archived/a.txt','/archived/x.txt']

 for (var i = 0; i < filesFrom.length; i++) {
    ftp.mv(filesFrom[i], filesTo[i], function(err, newPath){
        if (err) { console.log(err) }
    });
 };

ftp.close();