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  1. or download this
    open INFO, '<', 'testdoc.txt' or die "Can't open testdoc.txt: $!";
    
  2. or download this
    for (split//,$line) {
                $test = sprintf "\%3o\n", ord $_;
    
                           if ($test == 14) {
    
  3. or download this
    my $char = chr oct 14;
    while (my $line = <INFO>){
    ...
          # do whatever you want
       }
    }