TFS recover TFS Collection DB command

TFSConfig Recover /ConfigurationDB:tfsserver\SQLR2;Tfs_Configuration /CollectionDB:tfsserver\SQLR2;Tfs_collectionName

regex last \ in path replace with file prefix

            private string GenFileName(string SourceFile)

            {

                // last slash(\) replace with slash and file prifix (\TMP_)

                return Regex.Replace(SourceFile, @"\\(?=[^\\]*$)", @"\TMP_");

            }