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Re: chmod/chown/chgrp behavior change


From: Paul FM
Subject: Re: chmod/chown/chgrp behavior change
Date: Thu, 16 Apr 2015 17:16:03 -0500
User-agent: Mozilla/5.0 (Windows NT 5.1; rv:33.0) Gecko/20100101 Firefox/33.0 SeaMonkey/2.30

Correction - I meant CTIME (or Inode time).
listed with ls -lc

Thanks

On 4/16/15 5:01 PM, Paul FM wrote:
Many years ago I checked and chmod only changed the MTIME of a file if
it needed to make a change to the permissions, now the mtime is changed
on every file (even if no change is needed).

The  -c option works as expected (only tells you if a change was needed
to meet your command.

So is this a bug, or was it changed for a spcific reason ?

Is there a command line option to stop it from doing this?
Has this already been fixed (and I just need to update - version info
below).

The chmod distributed with FreeBSD still works as I would expect.


Note - we found this behaviour changed when trying to figure out why our
incremental backups are so large (it may have been changed for many years).

Thanks.



chmod --version
chmod (GNU coreutils) 8.21
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by David MacKenzie and Jim Meyering.





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