def METHOD_NAME(self):
    output_files = []
    for file in self.vasp_save_files:
        native_file = os.path.join(self.locdir,file)
        save_file   = os.path.join(self.locdir,self.identifier+'.'+file)
        if os.path.exists(native_file):
            os.system('cp {0} {1}'.format(native_file,save_file))
            output_files.append(file)
        #end if
    #end for
    return output_files