You're going to need to use the '^' anchor, e.g. 
if ($chunk =~ /^\xff\xff\x08\x00/) {
  print "Chunk in use\n";
} else {
  print "Chunk not used\n";
}

[download]
Otherwise, you'll get a match if that byte sequence is anywhere in the chunk, not just in the beginning.

In reply to Re: Re: Looking for a hexadecimal byte string in a scalar variable by ton
in thread Looking for a hexadecimal byte string in a scalar variable by donfreenut

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