http://bugs.winehq.org/show_bug.cgi?id=28037
--- Comment #1 from Frédéric Delanoy frederic.delanoy@gmail.com 2011-08-09 10:42:22 CDT --- (In reply to comment #0)
Assuming "bar" does not pre-exist, issuing
if 1==1 echo foo>>bar
in cmd generates a "Sharing violation" message, and "bar" isn't created
Actually it's created, but is empty