http://qs1969.pair.com?node_id=381943


in reply to Re: storing hex data in a file
in thread storing hex data in a file

You probably want to take a look at pack then. 
my $x = pack("C", 0x55);
print $x, "\n";

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works for you specific case but I don't have a good grasp of your general case to know if it will work for that.

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