On Fri, Mar 16, 2018 at 8:47 AM, Pommier, Rex <[email protected]>
wrote:

> Hi list,
>
> I have what is hopefully an easy question that I just am looking in the
> wrong place.  Given a PDS of source or JCL, is there a quick, "easy" way of
> finding any/all the packed members within the PDS?
>

​"easy"? I don't think so. There is not anything in the PDS directory entry
to indicate PACK ON or OFF. You must read the first record of the member.
If it starts with the "magic word" of X'000140C6', then it is packed with
Fixed length records. If it starts with the "magic word" of X'000140E5'
then it is packed with Variable length records. Or maybe just check for the
first 3 bytes being X'000140'. Wish that I could find the book where this
is documented. I think that I read it, long ago, in an ISPF manual.



>
> Thanks,
>
> Rex
>
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-- 
I have a theory that it's impossible to prove anything, but I can't prove
it.

Maranatha! <><
John McKown

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