text: /*
   * (C) Copyright 2005- ECMWF.
   *
   * This software is licensed under the terms of the Apache Licence Version 2.0
   * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
   *
   * In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
   * virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
   */
  #include "eccodes.h"
  
  void usage(char* prog)
  {
      printf("usage: %s in.nc\n", prog);
      exit(1);
  }
  
  int main(int argc, char* argv[])
  {
      char* file;
      int err = 0;
      codes_handle* h;
      char identifier[7] = {0,};
      size_t len       = 7;
      codes_context* c = codes_context_get_default();
  
      if (argc > 2) usage(argv[0]);
  
      file = argv[1];
  
      h = codes_handle_new_from_nc_file(c, file, &err);
      codes_get_string(h, "identifier", identifier, &len);
      printf("%s\n", identifier);
      CODES_CHECK(err, 0);
  
      return err;
  }
  