int main(int argc , char* argv[])
{
    if (argc == 1)
    {
        printUsage (&cout , argv [0]);
        return 0;
    }
    Cat MyCat (argc , argv);

    int nPos = isArg (argc , argv);
    ostream* Out = NULL;
    ofstream OutFile;

    if (nPos != -1)
    {
        string Path = getFile (argv [nPos]);
        OutFile.open (Path.c_str () , ios::app);
        Out = &OutFile;
    }
    else
    {
        Out = &cout;
    }
    MyCat.print (Out);
    if (nPos != -1)
    {
        OutFile.close ();
    }
    return 0;
}