FileBuckUp.gs

function sakugaBuckUp() {
  var targetfolders = DriveApp.getFoldersByName("DEENデジタル作画");//バックアップ対象のルートフォルダー
  var backupRootFolder = DriveApp.getFolderById("0B5AzqqTAWtrCSzZ5dFRzMC1YZFU");//バックアップ先のルートフォルダー
  var dest = backupRootFolder.createFolder(Utilities.formatDate(new Date(),'JST', 'yyyy-MM-dd-HH-mm'))
  //var dest = backupRootFolder.createFolder(new Date())
  while(targetfolders.hasNext()) {
    var folder = targetfolders.next();
    folderCopy(folder, dest);
  }
}

function folderCopy(folder, dest) {
  // var folders = DriveApp.getFolders();
  var folders = folder.getFolders();
  var files = folder.getFiles();

  while(files.hasNext()) {
    var file = files.next();
    // file.makeCopy(dest);とすると、****のコピーというファイル名になるので…。
    file.makeCopy(file.getName(), dest);
  }

  while(folders.hasNext()) {
    var subFolder = folders.next();
    var folderName = subFolder.getName();
    var copyFolder = dest.createFolder(folderName);
    folderCopy(subFolder, copyFolder);
  }  
}