On 20/10/2017 3:38 PM, Paul Gilmartin wrote:
It is nowhere documented that the six (exactly) standard utilities that support data set names use fopen(). That's a good guess, but IBM implicitly retains the liberty to change that implementation in the future.
The book also says "Shell commands that support MVS data sets (such as cp, mv, pax, tar, and c89) cannot process data sets that are defined as DSNTYPE=LARGE due to the restriction imposed by fopen()." which while not exactly crystal clear does explicitly mention fopen().
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