C# - How to execute command lines and get the output (without opening the "cmd" window)

Hi again!

I want to share with you this code to execute commands and receive the answer/output without opening the "cmd" window.

Here you have the steps:
1) Create a VS C# project and add a textBox, a button and a listBox to the Form
2) Adapt the following code to your project:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Diagnostics;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace SandBox

{

    public partial class Form2 : Form

    {

        public Form2()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            if(textBox1.TextLength>0)

                executeCommand(textBox1.Text);

        }

        private void executeCommand(String commandR)

        {

            try

            {

                var proc = new Process

                {

                    StartInfo = new ProcessStartInfo

                    {

                        FileName = "cmd.exe",

                        Arguments = "/c " + commandR,

                        UseShellExecute = false,

                        RedirectStandardOutput = true,

                        CreateNoWindow = true

                    }

                };

                updateStatusExecution("***COMMAND RECEIVED: " + commandR);

                updateStatusExecution("***ANSWER:");

                proc.Start();

                while (!proc.StandardOutput.EndOfStream)

                {

                    string line = proc.StandardOutput.ReadLine();

                    updateStatusExecution(line);

                }

            }

            catch (Exception e)

            {

                updateStatusExecution("***Error while executing '" + commandR + "'");

                updateStatusExecution("***Exception: '" + e.ToString());

                updateStatusExecution("***Stack Trace: '" + e.StackTrace.ToString());

            }

        }

        private void updateStatusExecution(String textR)

        {

            String currentDateTime = DateTime.Now.ToString(); ;

            listBox1.Items.Add(currentDateTime + " - " + textR);

        }

    }

}

3) Start (F5) and type a common command in the testBox to test.

Here's a screenshot of my code working.

Hope you had a wonderful Christmas and I wish you the best for 2015.
Regards!

Code Tricks.