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Date: Thu, 16 Jul 2015 20:29:18 -0500
Message-ID: <CAAXzdLWo4nvaJBMOBYsOYeCdrgw_O=8CM_H_kwfxnU=AqnuOjA@mail.gmail.com>
Subject: --line-regexp option with null data
From: Steven Penny <svnpenn@gmail.com>
To: cygwin@cygwin.com
Content-Type: text/plain; charset=UTF-8

Consider this command:

    printf 'alpha\nbravo\ncharlie\n' | grep --line-regexp --quiet bravo

grep sees 3 lines separated by newline, and matches the bravo line. Now consider
this command:

    printf 'alpha\0bravo\0charlie\0' | grep --line-regexp --quiet bravo

My thinking tells me that because I have not used `--null-data`, grep should see
1 or even 0 lines separated by newline, and fail to match a `bravo` followed by
newline. However it does not, it succeeds just like the first command, why is
this?

Note I also tried this on Debian with Grep 2.2 and it works as expected.

http://stackoverflow.com/q/31467045

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