[debbugs-tracker] bug#17032: closed (side effect bug...)

[GNU bug Tracking System]

Your message dated Tue, 18 Mar 2014 08:59:39 -0700
with message-id <address@hidden>
and subject line Re: bug#17032: side effect bug...
has caused the debbugs.gnu.org bug report #17032,
regarding side effect bug...
to be marked as done.

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-- 
17032: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17032
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> Subject: 
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> side effect bug...
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> Date: 
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> Tue, 18 Mar 2014 05:41:15 +0100
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> User-agent: 
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> Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.3.0
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> The option "-n" have a side effect with the option "-P" and the regexp 
> '^\r$', the line numbers got overwritten by the carriage return char so 
> these don't appear on output.
>
> cmd ex: grep -Pn '^\r$' file.txt
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> ps: I know I can see the numbers by redirecting output in a file.
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> --- End Message ---
> --- Begin Message ---
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> Subject: 
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> Re: bug#17032: side effect bug...
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> Date: 
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> Tue, 18 Mar 2014 08:59:39 -0700
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> tags 17032 + notabug
> thanks
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> On Mon, Mar 17, 2014 at 9:41 PM, Roméo Capulet <address@hidden> wrote:
> > The option "-n" have a side effect with the option "-P" and the regexp
> > '^\r$', the line numbers got overwritten by the carriage return char so
> > these don't appear on output.
> >
> > cmd ex: grep -Pn '^\r$' file.txt
> >
> > ps: I know I can see the numbers by redirecting output in a file.
>
> Thanks for the report.
> You can avoid that in at least two ways: either filter out all \r bytes
> or filter through something like cat -A that renders them another way:
>
>   grep -Pn '^\r$' file.txt | tr -d '\r'
>
> or
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>   grep -Pn '^\r$' file.txt | cat -A
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>
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