On Sun, 9 Jan 2022 22:50:46 +0000, Seymour J Metz wrote:

>Unique names for temporary Unix files is trivial. Making them go away at the 
>completion of the work is more difficult.
> 
Most implementations of tmpfile() unlink the file immediately on creating it,
before returning to the caller.  z/OS is an outlier, perhaps because of
historic support for Classic data sets.  (But that could work for PDS or
connected PDSE members.)

-- gil

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