Вопрос по Renci.SshNet

using Renci.SshNet;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SshClient10
{
    class Program
    {
            using (var client = new SshClient("10.1.1.1", 22, "maintainer", "12345678"))
            {
                client.Connect();
                var cmd = client.RunCommand("echo -e '12345678\n' | sudo su");
                if (cmd.ExitStatus == 0)
                    Console.WriteLine(cmd.Result);
                else
                    Console.WriteLine(cmd.Error);               
                client.RunCommand("shutdown -h now");
                client.Disconnect();
            }
    }
}