[ -w filename ] returns true when permissions are -r--r--r--

Eric Blake eblake@redhat.com
Wed Jul 20 18:21:00 GMT 2011


On 07/20/2011 12:05 PM, Reid Thompson wrote:
> Is this broken? Or a known windows/cygwin discrepancy? Or am I missing
> something with my posix/windows file permissions settings

If you are running as an administrator, that might explain it. Admins 
can alter any file regardless of permissions, in which case [ -w is 
telling you the truth that under your current uid, you can indeed write 
to the file.
This is a feature of access(file,W_OK), and not a bug.
-- 
Eric Blake eblake@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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