Example of command line parameters

file example.c:
   int main(int argc, char **argv)
   {
      int i;
      for (i=0; i<argc;i++) {
         printf("%s\n", argv[i];) // note the switch from 
                                  // pointer to array view.
      }
      return 0;
   } 

   compile and run:

   gcc example.c

   ./a.out one two three

   a.out
   one
   two
   three