C# Console receive input with pipe

Question

I know how to program Console application with parameters, example : myProgram.exe param1 param2.

My question is, how can I make my program works with |, example : echo "word" | myProgram.exe?

Answer 1

You need to use Console.Read() and Console.ReadLine() as if you were reading user input. Pipes replace user input transparently. You can't use both easily (although I'm sure it's quite possible...).

Edit:

A simple cat style program:

class Program
{
    static void Main(string[] args)
    {
        string s;
        while ((s = Console.ReadLine()) != null)
        {
            Console.WriteLine(s);
        }

    }
}

And when run, as expected, the output:

C:\...\ConsoleApplication1\bin\Debug>echo "Foo bar baz" | ConsoleApplication1.exe
"Foo bar baz"

C:\...\ConsoleApplication1\bin\Debug>

Answer 2

Here is something I have found with Google : Interprocess Communication but it requires kernell32.dll call... does it has an other way to do it? It's a simple task ...

Answer 3

Console.In is a reference to a TextReader wrapped around the standard input stream. When piping large amounts of data to your program, it might be easier to work with that way.

Answer 4

there is a problem with supplied example.

  while ((s = Console.ReadLine()) != null)

will stuck waiting for input if program was launched without piped data. so user has to manually press any key to exit program.