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echo: rberrypi
to: AHEM A RIVET`S SHOT
from: THE NATURAL PHILOSOPHER
date: 2018-05-14 15:28:00
subject: Re: Lifetime of SD cards

On 14/05/18 14:41, Ahem A Rivet's Shot wrote:
> On Mon, 14 May 2018 14:14:54 +0100
> The Natural Philosopher  wrote:
>
>> On 14/05/18 13:25, Richard Kettlewell wrote:
>>> The Natural Philosopher  writes:
>>>> On 14/05/18 08:50, Richard Kettlewell wrote:
>>>>> The Natural Philosopher  writes:
>>>>>> mtime atime and IIRC ctime
>>>>>>
>>>>>>
https://www.unixtutorial.org/2008/04/atime-ctime-mtime-in-unix-filesystems/
>>>>>>
>>>>>> last modfied, last accessed and when created.
>>>>>                                   ^^^^^^^^^^^^^^
>>>>>
>>>>> ctime is not creation time. Read your own link l-)
>>>>
>>>> LOL.
>>>>
>>>> Well Ive always used to to determine when a file was created as its
>>>> rare to change permissions and that's my excuse..
>>>
>>> That doesn’t work either...
>>>
>>>     $ rm -f a
>>>     $ touch a
>>>     $ stat -c 'mtime: %y ctime: %z' a
>>>     mtime: 2018-05-14 13:21:01.746205877 +0100 ctime: 2018-05-14
>>> 13:21:01.746205877 +0100 $ echo whatever >> a
>>>     $ stat -c 'mtime: %y ctime: %z' a
>>>     mtime: 2018-05-14 13:21:26.834237884 +0100 ctime: 2018-05-14
>>> 13:21:26.834237884 +0100
>>>
>> ??? in which case its no different from mtime is it?
>>
>> Something doesnt compute
>
>  If mtime changes then ctime will change but ctime will also change
> for permission changes and the like when mtime won't.
>
Ah....

OK


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