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  1. or download this
    # get a 5-byte string, skip 3, grab 2 8-byte strings, then the rest
    ($leading, $s1, $s2, $trailing) = unpack("A5 x3 A8 A8 A*",$data);
    
  2. or download this
    $string = "My uncle John is Jamaica";
    $binary=unpack("B*",$string);
    
  3. or download this
    $string = "My uncle John is Jamaica";
    $hexadecimal=unpack("H*",$string);
    $string=pack("H*",$hexadecimal);