http://www.perlmonks.org?node_id=1006372


in reply to pack/unpack binary file

I am unable to repack it to a bin file after I'm done with it

You aren't packing the output. You are sprintfing it to hex; which is just a text representation.

If you want the output (re)packed, use pack. (And don't forget to binmod your output file.)


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