// Start IPC here
    auto set1 = FileDescriptor.pipe2();
    auto set2 = FileDescriptor.pipe2();

    auto pid = Process.fork();

    if( pid == 0 )
    {
        Shdout.formatln("I am the child!");

        // Close stdin/stdout
        fds[0].close();
        fds[1].close();

        // Replace with pipe(r/w)
        set1[0].dup2( 0 );
        set2[1].dup2( 1 );

        set1[0].close();  set1[1].close();
        set2[0].close();  set2[1].close();

        Process.execve( "/usr/bin/md5sum", ["md5sum"], null );
    }