From: cyg Simple <cygsimple@gmail.com>
To: cygwin@cygwin.com
Subject: Re: grep 3.0-2 not stripping CRs on Windows
Date: Mon, 17 Dec 2018 15:38:00 -0000 [thread overview]
Message-ID: <ff0dc09c-afcb-aba9-cf11-c74a9c3e77cb@gmail.com> (raw)
In-Reply-To: <5c179f2c.1c69fb81.64a2a.1b89@mx.google.com>
On 12/17/2018 8:05 AM, Steven Penny wrote:
> On Mon, 17 Dec 2018 13:22:48, OndÅej Surý wrote:
>> # No amount of options makes the grep find the text in the file
>> $ ./grep-3.0-2.exe 'foo$â crlf.txt
>> $ ./grep-3.0-2.exe -U 'foo$' crlf.txt
>> $ ./grep-3.0-2.exe -a 'foo$â crlf.txt
>
> Your commands are failing because you are not accounding for the carriage
> returns. as was said, this change was intentionally done for the purpose of
> making scripts MORE portable:
>
And the portability is what we want to keep.
> https://cygwin.com/ml/cygwin/2017-02/msg00155.html
>
> if you want to keep your grep command, you need to remove CR first:
>
> Â Â $ printf 'alpha\r\nbeta\r\n' > CRLF.txt
> Â Â $ tr -d '\r' < CRLF.txt | grep 'a$'
This is the POSIX method to get portability and Cygwin is POSIX for
Windows. Therefore the bits of documentation for MS-DOS and MS-Windows
isn't in affect for Cygwin grep. In other words the following is in
affect but can be misinterpreted because Cygwin runs on MS-Windows but
isn't considered such.
"This option has no effect on platforms other than MS-DOS and
MS-Windows."
> Â Â alpha
> Â Â beta
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next prev parent reply other threads:[~2018-12-17 15:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-17 11:55 Ondřej Surý
2018-12-17 12:04 ` Soegtrop, Michael
2018-12-17 12:22 ` Ondřej Surý
2018-12-17 12:51 ` Soegtrop, Michael
2018-12-17 13:05 ` Steven Penny
2018-12-17 15:38 ` cyg Simple [this message]
2018-12-17 12:09 ` Corinna Vinschen
-- strict thread matches above, loose matches on Subject: below --
2018-12-17 11:10 Ondřej Surý
2018-12-17 11:41 ` Marco Atzeri
2018-12-17 23:37 ` Andrey Repin
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