moozzyk

            var m = Regex.Match("CentOS Linux release 7.1.1503(Core)", @"^(?<distro>\S+) \S+ \S+ (?<version>\d\.\d)\..+$");
            if (m.Success)
            {
                Console.WriteLine($"Distro: {m.Groups["distro"]} Version: {m.Groups["version"]}");
            }