On Aug 10, 2011, at 08:39, Glenn Knickerbocker wrote:
> On Wed, 10 Aug 2011 09:31:56 -0500, you wrote:
>> Is there a (PIPE) way to create an empty file in SFS?
>
> Yep, >SFS has an ALLOWEMPTY operand.
>
Whatever the answer, it should apply likewise to byte stream
files and TSO pipelines.
TSO EXECIO requires a special construct:
EXECIO 0 ddname (FINIS OPEN /* OPEN is like ALLOWEMPTY. */
In UNIX, most constructs that write nothing still create the
file. E.g.:
cat /dev/null >fileID # creates the file
PIPE HOLE | > fn ft fm /* doesn't (I surmise from the question). */
Sometimes the programmer wants the file created; sometimes not.
-- gil
