GNU bug report logs - #31913
A bug with grep

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Onur Demir <onurdemir90 <at> gmail.com>
To: bug-grep <at> gnu.org
Subject: A bug with grep
Date: Wed, 20 Jun 2018 14:32:10 +0300

[Message part 1 (text/plain, inline)]

Hello everyone,

Althought i use grep with -i parameter it can not realise the difference
between i and I letter

I'm sending the screenshots

Best regards

Good Bye

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Message #8 received at 31913 <at> debbugs.gnu.org (full text, mbox):

From: Budi Kusasi <abdulbadii <at> yandex.com>
To: Onur Demir <onurdemir90 <at> gmail.com>
Cc: 31913 <at> debbugs.gnu.org
Subject: Re:bug#31913: A bug with grep
Date: Wed, 20 Jun 2018 23:30:01 +0700

it won't.
because it's insensitive to case ie. ignoring to distinguish the difference of letter case.

Message #13 received at 31913-done <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Onur Demir <onurdemir90 <at> gmail.com>, 31913-done <at> debbugs.gnu.org
Subject: Re: bug#31913: A bug with grep
Date: Thu, 21 Jun 2018 14:21:06 -0700

On 06/20/2018 04:32 AM, Onur Demir wrote:
> Althought i use grep with -i parameter it can not realise the difference
> between i and I letter

Yes, grep -i is doing what it's supposed to: it's ignoring case 
distinctions so that "listen" in the pattern matches "LISTEN" in the data.

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