Dear Monks,

This is my first try at handling a binary file. I have successfully slurped a long string of bits into $trailing:

 ($id, $trailing) = unpack ("A16 x72 B*", $data);

I now need to divide that string into 8 bits x 4 repeatedly over the string, which may vary from file to file but will always be a multiple of 32. I was wondering how to go about this...

 (byte2, byte1, byte4, byte3) = ?????

It is likely trivial but I am stumped!
Thanks for any hints...

Update Sorry for bothering you, a loop with substr should do it...  substr $trailing, 0, 8, "" ;

Update2 To answer the first question of BrowserUK I read the bits because that filled my variable, it did not occur to me to capture the result in an array !! Many thanks to all!
---jjap

In reply to further subdivision of unpack result by jjap

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