On Wed, 20 Aug 2014 10:26:30 -0500, Elardus Engelbrecht wrote:
>
>Just curious, do you need to add BLKSIZE?
> 
SDB is your friend.  He was probably just calling attention that
he was relying on it.

>For the first few datasets to practise on the ALLOC, I would like to see what 
>is in OUTPUT. Then if everything is fine, I will let DUMMY it. 
> 
John's use of DUMMY appears to be merely to supply a loop invariant:
Each iteration begins with OUTPUT allocated and open.

-- gil

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