GNU bug report logs -
#22071
incorrect behaviour for inverted matches with -l on empty files
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Reported by: Mark Wotton <mwotton <at> gmail.com>
Date: Tue, 1 Dec 2015 22:47:02 UTC
Severity: normal
Done: Paul Eggert <eggert <at> cs.ucla.edu>
Bug is archived. No further changes may be made.
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Message #17 received at 22071 <at> debbugs.gnu.org (full text, mbox):
Yes, I understand the interpretation now. Just confusing when you have
a model in mind that almost always works.
On 12/2/15, Eric Blake <eblake <at> redhat.com> wrote:
> On 12/02/2015 06:14 AM, Mark Wotton wrote:
>> hm. "grep -l '' empty" also doesn't print anything, so I guess it's
>> consistent, at least.
>
> You want 'grep -L "hi there" ./empty', which says to print the names of
> all files that did not contain any match (and not the names of all files
> that had lines that didn't match). That is, -v and -L are different
> types of negation.
>
> $ grep -L '' empty
> empty
> $ grep -Lv '' empty
> empty
>
> The empty file has no matches to any patterns (whether or not the
> pattern is negated with -v), so it shows up under -L.
>
> --
> Eric Blake eblake redhat com +1-919-301-3266
> Libvirt virtualization library http://libvirt.org
>
>
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This bug report was last modified 9 years and 170 days ago.
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