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Back in the olde dayes, of Windows 3.11 and Perl running under a DOS extender, and at least for a while afterwards, back-ticking in Perl did exactly what DOS did: it ran the source program, spooled the output to a temporary file until it ended, then started executing the target file, feeding it the contents of the spooled output.

This is how all std(in|out) DOS redirection worked. So by doing it explicitly in Perl, while more verbose, at least has the advantage of bringing it all out in the open, and you are less reliant on DOS jiggery-pokery.

AFAIK, this output-spooling behaviour is still the norm for Win98, but someone else may like to confirm.

--
g r i n d e r

In reply to Re:x2 Perl on Win98 vs. Win/NT/2000? by grinder
in thread Perl on Win98 vs. Win/NT/2000? by jlongino

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