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Re: sort parameters question: -V and -f
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From: |
Eric Blake |
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Subject: |
Re: sort parameters question: -V and -f |
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Date: |
Wed, 06 Apr 2011 16:36:30 -0600 |
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On 04/06/2011 04:04 PM, Pádraig Brady wrote:
> On 06/04/11 22:26, Assaf Gordon wrote:
>> Hello,
>>
>> I'm wondering if this is a bug (where "-f" is ignored when using version
>> sort):
>>
>> =========
>> $ sort --debug -f -k2,2V
>> sort: using simple byte comparison
>> sort: leading blanks are significant in key 1; consider also specifying `b'
>> sort: option `-f' is ignored
>
> The same happens for any ordering option.
> If any is specified for the key, then all global options are ignored.
> This is specified by POSIX and here it's demonstrated on solaris:
>
> solaris:~ > printf "a13\nA5\na1\n" | sort -f -k1r,1
> a13
> a1
> A5
> solaris:~ > printf "a13\nA5\na1\n" | sort -k1r,1
> a13
> a1
> A5
Not only that, but --debug would have told you the same:
$ printf "a13\nA5\na1\n" | LC_ALL=C sort --debug -f -k1r,1
sort: using simple byte comparison
sort: option `-f' is ignored
a13
___
___
a1
__
__
A5
__
__
[I just LOVE the --debug option - why didn't we add it sooner?]
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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