Standard output does not print date and time for each line

Question

I currently have a standard output process that executes a CMD command in my console application and prints the output to the log file.

The issue?

It would only print out the current date and time once before printing out the output.

Example - From log .txt file

What do I want to achieve?

Example

Current Code

static readonly string logPath = (@"C:\Temp\Test.txt");

        public static void Main()
        {

            StreamWriter logFile = new(logPath, append: true);

            var proccess = new Process
            {
                StartInfo = new ProcessStartInfo
                { 
                    FileName = "cmd.exe",
                    Arguments = "/c tsm start",
                    UseShellExecute = false,
                    RedirectStandardOutput = true
                }
            };
            proccess.Start();

            while (!proccess.StandardOutput.EndOfStream)
            {
                string output = proccess.StandardOutput.ReadToEnd();
                if (output.Contains("successfully executed"))
                {
                    logFile.WriteLine(DateTime.Now + " " + output);
                }
        }

Answer 1

Just split the output and write it line by line.

if (output.Contains("successfully executed"))
{
    var lines = output.Split(new [] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
    foreach (var line in lines)
    {
        logFile.WriteLine(DateTime.Now + " " + line);
    }
}