Thread: using system() and redirection

  1. #1
    Registered User aryn's Avatar
    Join Date
    Sep 2005

    using system() and redirection

    How can i assign the ouput from system("ping myIP") to a variable on the linux platform. Im actually using a program called ding which prints an integer to the consoe. I need to redirect the output from the console to the variable.

  2. #2
    and the hat of int overfl Salem's Avatar
    Join Date
    Aug 2001
    The edge of the known universe
    popen() is probably the easiest thing to use
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

  3. #3
    Registered User aryn's Avatar
    Join Date
    Sep 2005
    Thanks I think ive got it working with.
    FILE *fp;
      char line[10];
      fp = popen("ding -s -r 202.......", "r");
      while ( fgets( line, sizeof line, fp))
        cout << "result is " << line << endl;
    Thanks again

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