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  1. or download this
    use strict;
use warnings;
...
my $string;
sysread(PLP, $string, 100);
printf("0x%02x ", ord($_)) for (split //, $string);
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  3. or download this
    use strict;
use warnings;
...
my $string;
sysread(PLP, $string, 100);
printf("0x%02x ", ord($_)) for (split //, $string);
  4. or download this
    0x0d 0x00 0x0d 0x0a 0x00