linux-kernel - Re: wierd file perms

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Date:	Sun, 14 Oct 2007 16:01:47 -0400
From:	Mark Lord <lkml@....ca>
To:	Jan Engelhardt <jengelh@...putergmbh.de>
Cc:	vignesh babu <vigneshbabu@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: wierd file perms

Jan Engelhardt wrote:
> On Oct 14 2007 09:27, Mark Lord wrote:
>> Jan-Benedict Glaw wrote:
>>> On Sat, 2007-10-13 22:40:23 +0530, vignesh babu <vigneshbabu@...il.com>
>>> wrote:
>>>> I was surprised and did an ls -l on the files and guess what I found:
>>>>
>>>> total 0
>>>> ?--------- ? ? ? ?                ? fcntl.c
>>>> ?--------- ? ? ? ?                ? fifo.c
>>>> ?--------- ? ? ? ?                ? filesystems.c
>>>> ?--------- ? ? ? ?                ? file_table.c
>>>> ?--------- ? ? ? ?                ? freevxfs
>>>>
>>>> So end result is that, Im not able to delete the files or change perms
>>>> or ownership even as root.
>>> Most probably, your filesystem is broken and needs a fsck.
>> No, this is perfectly normal behaviour, for when a directory
>> has READ permissions but not EXECUTE permissions.
> 
> Er, close.
> 
> 	16:02 ichi:/dev/shm > md a
> 	16:02 ichi:/dev/shm > touch a/b
> 	16:02 ichi:/dev/shm > chmod 644 a
> 	16:02 ichi:/dev/shm > ls -l a
> 	/bin/ls: cannot access a/b: Permission denied
> 	total 0
> 	-????????? ? ? ? ?            ? b
> 	16:02 ichi:/dev/shm > ls --version
> 	ls (GNU coreutils) 6.9
> 
> 
> There is a difference ..  "-?????????" vs "?---------".

That's just a version difference for GNU ls.
Here, with ls (GNU coreutils) 5.97 it gives this:

?--------- ? ? ? ?                ? a/b


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