How to Retrieve Command-Line Output in C#?

Capturing Command-Line Output within C# Applications

In C# development, you'll often need to run command-line applications and retrieve their output. This is crucial for tasks like file comparisons (using tools like diff). The Process class offers a robust solution. Here's a step-by-step guide:

1. Initiate the External Process:

   Process process = new Process();

2. Redirect the Standard Output Stream:

   process.StartInfo.UseShellExecute = false;
   process.StartInfo.RedirectStandardOutput = true;

3. Specify the Command:

   process.StartInfo.FileName = "YOURBATCHFILE.bat"; // Or any executable path

4. Begin Execution:

   process.Start();

5. Retrieve the Output (Non-Blocking):

   string output = process.StandardOutput.ReadToEnd();

6. Await Process Completion:

   process.WaitForExit();

The output string variable will now hold the command's standard output.

This approach, based on MSDN documentation, demonstrates the effective use of the Process class for managing external processes within your C# applications. Remember to replace "YOURBATCHFILE.bat" with the actual path to your executable.

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