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Subject: Re: Different representations of time in ls -l and date(1)
To: cygwin AT cygwin DOT com
References: <A45B1767F1002449A37508C2CC6003D736A232 AT DEFTHW99EJ1MSX DOT ww902 DOT siemens DOT net> <860c2a0f5dd46780649de9a26ebc0464 AT mhoenicka DOT de> <dcd35b85-cfff-a821-a81c-b311db1bd242 AT farance DOT com>
From: Eric Blake <eblake AT redhat DOT com>
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Message-ID: <60d27734-5ce7-6e25-e170-a0baa5442a69@redhat.com>
Date: Wed, 31 Aug 2016 09:36:49 -0500
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From: Eric Blake <eblake AT redhat DOT com>
To: cygwin AT cygwin DOT com
Message-ID: <60d27734-5ce7-6e25-e170-a0baa5442a69 AT redhat DOT com>
Subject: Re: Different representations of time in ls -l and date(1)
References: <A45B1767F1002449A37508C2CC6003D736A232 AT DEFTHW99EJ1MSX DOT ww902 DOT siemens DOT net>
 <860c2a0f5dd46780649de9a26ebc0464 AT mhoenicka DOT de>
 <dcd35b85-cfff-a821-a81c-b311db1bd242 AT farance DOT com>
In-Reply-To: <dcd35b85-cfff-a821-a81c-b311db1bd242 AT farance DOT com>


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On 08/31/2016 08:04 AM, Frank Farance wrote:
> On 2016-08-31 08:09, Markus Hoenicka wrote:
>> At 2016-08-31 13:41, Schwarz, Konrad was heard to say:
>>> Sorry for the previous incomplete mail.
>>>
>>> So my problem is that date(1) outputs AM/PM style dates, whereas ls -l
>>> uses 24 hour times.
>>>
>>> $ ls -l rtos_benchmark.lst
>>> -rwxr-xr-x+ 1 mchn1350 Domain Users 263 Aug 31 13:14 rtos_benchmark.lst*
>>> $ date
>>> Wed, Aug 31, 2016  1:39:35 PM
>>> $ echo $LC_TIME
>>>
>>> $ echo $LANG
>>> en_US.UTF-8
>>>
>>> Shouldn't they be using the same format?

Not necessarily.  ls hardcodes its default representation for files
younger than 6 months to:

"%b %e %H:%M"

while date hardcodes its default representation to:

nl_langinfo(_DATE_FMT)

>=20
> Furthermore, I'd say that the default output of "date" should look like
> the Linux one, which is the way it has looked on UNIX for about 40 years:
>=20
> Linux: Wed Aug 31 08:56:10 EDT 2016
> Cygwin: Wed, Aug 31, 2016 08:54:49
>=20
> In other words, on Cygwin: get rid of the commas, put back the timezone.

Sounds like the bug is in cygwin1.dll's nl_langinfo() function for
returning a date format with spurious commas.

--=20
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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