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  1. or download this
    open EXT,"|extprog";
    while (<>){
    ...
      print EXT "$data[0] $data[1]\n";
    }
    close EXT;
    
  2. or download this
    $run =
    "mapproject -F --D_FORMAT=\%lf -I --ELLIPSOID=HELMERT1906  -Jt31/30/1:
    +1 -R31/40/30/39 --MAP_SCALE_FACTOR=1.0000 ";
    ...
    while (<RESULTS>) {
        print $_;
    }