using System;

using System.Linq;

using System.Collections.Generic;

using System.Text.RegularExpressions;

​

public class Program

{

    public static void Main()

    {

        List<string> files = new List<string>();

        files.Add("AB_DBER_2016101194814.txt");

        files.Add("AB_EBER_2016101194815.txt");

        files.Add("AB_FBER_2016101194811.txt");

        files.Add("This_Does_Not_Match.txt");

        List<string> refFiles = new List<string>();

        refFiles.Add("AB_DBER_[0-9]{13,13}.txt");

        refFiles.Add("AB_EBER_[0-9]{13,13}.txt");

        refFiles.Add("AB_FBER_[0-9]{13,13}.txt");

        foreach (var file in files)

        {

            if (refFiles.Any(pattern => Regex.IsMatch(file, pattern)))

            {

                Console.WriteLine(file);

            }

        }

    }

}