Actually, for portability, it might be better to check what
shell is being used than what platform - you shouldn't
expand wildcards if you are running the Korn Shell under
Windows.
Nor should you expand wildcards if the user bypassed wildcard
expansion on purpose.... (quoting, escaping, direct exec
call instead of going via a shell, etc).
It's going to be very, very hard to be "portable" here.
-- Abigail
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