where was mention of what creates NUL files?
Fri Sep 17 18:02:00 GMT 2010
On 09/17/2010 11:12 AM, Daniel Barclay wrote:
> Does anyone recall a mention of what in CygWin (or possibly Emacs) creates
> files with a simple name of "NUL"?
Windows automagically maps the file named "NUL", in any directory, to
the equivalent of Unix' /dev/null. Cygwin doesn't create it, but all
the same, portable programs should never name a file that
case-insensitively matches 'nul', 'aux', or a host of other
Meanwhile, cygwin 1.7 has added some magic to use native NT calls to
work around these limitations, so that you can have a file that appears
to be named "NUL" from within cygwin, but which is really exploiting
some 16-bit values outside of Unicode. But various windows programs
that use windows API (rather than lower-level NT API), including your
file Explorer, have a hard time figuring out what cygwin did.
Eric Blake firstname.lastname@example.org +1-801-349-2682
Libvirt virtualization library http://libvirt.org
Problem reports: http://cygwin.com/problems.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
More information about the Cygwin