Change all file names in specific folder

Question

Hi I want to change all file names in a specific folder including sub folders files How can i do that. example: I want to change all file names (Actually i have to give only one common number to all file names in one folder) in a NumberFolder1 My Folder1 structure like this: NumberFolder1 - Folder2 -abc.xls -folder3 -xyz.xls -123.xls Now I want to add a name(Number) to all files the result should be like this: NumberFolder1 - Folder2 -Number_abc.xls -folder3 -Number_xyz.xls -Number_123.xls Thanks Darma

Vulpes · Answer

The code to do that will be something like this: using System; using System.IO; class Program { static void Main() { string[] folderPaths = {c:\NumberFolder1\Folder2 c:\NumberFolder1\folder3}; foreach(string folderPath in folderPaths) ChangeFileNames(folderPath); } static void ChangeFileNames(string folderPath) { string[] filePaths = Directory.GetFiles(folderPath *.xls); foreach(string filePath in filePaths) { string fileName = Path.GetFileName(filePath); string folderName = Path.GetDirectoryName(filePath); fileName = Number_ + fileName; File.Move(filePath String.Format({0}\{1} folderName fileName)); } } }