Transfer text, line by line, from one text file to another. Good for programmatic text manipulation.

TextTransfer.cs

using System;
using System.IO;

class TextTransfer
{
	static void Main()
	{
		const string ReadingFilePath = @"C:\stuff.txt";
		const string WritingFilePath = @"C:\stuff2.txt";
		const bool AppendToFile = false;
		string line = String.Empty;

		using (var streamReader = new StreamReader(ReadingFilePath))
		using (var streamWriter = new StreamWriter(WritingFilePath, AppendToFile))
		{
			while ((line = streamReader.ReadLine()) != null)
				streamWriter.WriteLine(line);
		}

		Console.WriteLine("Completed.");
		Console.ReadKey();
	}
}