Запуск cmd со списком аргументов

System.Diagnostics.Process process = new System.Diagnostics.Process();
System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo();
startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
startInfo.FileName = "cmd.exe";
startInfo.Arguments = "/C copy /b Image1.jpg + Archive.rar Image2.jpg";
process.StartInfo = startInfo;
process.Start();

startInfo.Arguments = "/C dir & pause";

string batPath = Path.Combine(Path.GetTempPath(), "abc.bat");
string commands = @"dir
pause";
File.WriteAllText(batPath, commands, Encoding.Default);
Process cmd = Process.Start(batPath);
cmd.WaitForExit();
File.Delete(batPath);

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
 
namespace WindowsFormsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        private void button1_Click(object sender, EventArgs e)
        {
            System.Diagnostics.Process process = new System.Diagnostics.Process();
            System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo();
            startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Normal;
            startInfo.FileName = "cmd.exe";
            startInfo.Arguments = @"/C cls && echo XXX && echo YYY && PAUSE";
            //startInfo.Arguments = @"setlocal enabledelayedexpansion for /l %%i in (65, 1, 90) do ( cmd /c exit /b %%i 2>nul dir /b /a-d /s !=exitcodeascii!:/myfile*.* >>%UserProfile%/Desktop/myfile.txt ) endlocal & <nul set /p str=""%s% "" && find /c /v """" < "" %UserProfile%/Desktop/myfile.txt"" & Exit"; 
            process.StartInfo = startInfo;
            process.Start();
        }
    }
}

string batPath = Path.Combine(Path.GetTempPath(), "abc.bat");
string commands = @"setlocal enabledelayedexpansion
    for /l %%i in (65, 1, 90) do (
      cmd /c exit /b %%i
 
2>nul dir /b /a-d /s !=exitcodeascii!:\myfile*.* >>%UserProfile%\Desktop\myfile.txt
 
)
endlocal
 
<nul set /p str="%s% "
find /c /v "" < "%UserProfile%\Desktop\myfile.txt"
 
Exit";
File.WriteAllText(batPath, commands, Encoding.Default);
Process cmd = Process.Start(batPath);
cmd.WaitForExit();
File.Delete(batPath);