Add timestamps to console output

cmdts.cs

using System;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;

namespace Sys
{
    class Program
    {
        static void Main(string[] args)
        {
            if (args.Length == 0)
            {
                var location = Assembly.GetExecutingAssembly().Location;
                var fileName = Path.GetFileName(location);
                Console.WriteLine($"Usage: {fileName}  <executable> [<arguments>]");
                Environment.Exit(1);
            }

            var si = new ProcessStartInfo(args[0])
            {
                UseShellExecute = false,
                RedirectStandardOutput = true,
                RedirectStandardError = true,
                Arguments = string.Join(" ", args.Skip(1))
            };

            var proc = new Process
            {
                EnableRaisingEvents = true,
                StartInfo = si,
            };

            proc.Start();
            proc.OutputDataReceived += Proc_DataReceived;
            proc.ErrorDataReceived += Proc_DataReceived;
            proc.BeginOutputReadLine();
            proc.BeginErrorReadLine();
            proc.WaitForExit();
        }

        private static void Proc_DataReceived(object sender, DataReceivedEventArgs e)
        {
            if (string.IsNullOrWhiteSpace(e.Data))
            {
                Console.WriteLine();
            }
            else
            {
                Console.WriteLine($"{DateTime.Now:yyyy/MM/dd HH:mm:ss.fff} {e.Data}");
            }
        }
    }
}