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Subject: Re: find / without traversing /proc
To: cygwin AT cygwin DOT com
References: <380-22017442784921354 AT M2W161 DOT mail2web DOT com> <CAKw7uVix05wZvX=in08fjvNWwZb_DUYmYbeTn5XXOBdedNd5DQ AT mail DOT gmail DOT com> <1188853682 DOT 20170428041153 AT yandex DOT ru> <2d6ad098-c844-bf4b-0afd-7631cad2b2b7 AT redhat DOT com> <863911038 DOT 20170429033200 AT yandex DOT ru>
From: Eric Blake <eblake AT redhat DOT com>
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Date: Sat, 29 Apr 2017 10:11:02 -0500
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From: Eric Blake <eblake AT redhat DOT com>
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Subject: Re: find / without traversing /proc
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On 04/28/2017 07:32 PM, Andrey Repin wrote:
> Greetings, Eric Blake!
>=20
>> On 04/27/2017 08:11 PM, Andrey Repin wrote:
>=20
>>>
>>>> Doesn't the -xdev switch help with this?
>>>
>>> Just keep in mind that -xdev is an extension and different platform may=
 use a
>>> different way to indicate that find should stick to the current device.
>=20
>> Huh?  find -xdev is specified by POSIX, so it's portable:
>=20
>> http://pubs.opengroup.org/onlinepubs/9699919799/utilities/find.html
>=20
> 2016 edition. It's new. But pleasant.

2016 edition is just technical corrigenda to the 2008 edition. But -xdev
was in the 2001 edition (web page says 2004, as a technical corrigendum
to the 2001 edition, for the same reason as the other web page says 2016):
http://pubs.opengroup.org/onlinepubs/009695399/utilities/find.html

> Last time I checked it was labeled as GNU extension.

Then you haven't been keeping up with things.  -xdev has been
standardized for a long time.

--=20
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org


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