[ -w filename ] returns true when permissions are -r--r--r--
Larry Hall (Cygwin)
Thu Jul 21 18:52:00 GMT 2011
On 7/21/2011 9:31 AM, Corinna Vinschen wrote:
> On Jul 21 07:43, Nellis, Kenneth wrote:
>>> From: Eric Blake
>>> On 07/20/2011 12:05 PM, Reid Thompson wrote:
>>>> Is this broken? Or a known windows/cygwin discrepancy? Or am I
>>>> 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.
>> FWIW, I'm not running as administrator and I'm running 1.7.9, and I'm
>> seeing the same thing:
>> $ touch afile
>> $ chmod 444 afile
>> $ ls -l
>> total 0
>> -r--r--r-- 1 knellis knellis 0 Jul 21 08:36 afile
>> $ [ -w afile ]&& echo writable || echo not writable
>> $ echo abc>> afile
>> $ cat afile
>> $ ls -l
>> total 1
>> -r--r--r-- 1 knellis knellis 4 Jul 21 08:37 afile
> What system? XP, Vista? 7?
> What's the output of `id'?
Or even <http://cygwin.com/snapshots/>. ;-)
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?
Problem reports: http://cygwin.com/problems.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
More information about the Cygwin