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Date: Mon, 24 Nov 2003 16:45:28 +0100
From: Ilya Varlashkin <ilya@samara.net>
To: freebsd-questions@freebsd.org
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Subject: Re: newbie: use <CR> in RE?
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> ----- Original Message ----- 
> From: "Zhang Weiwu" <weiwuzhang@hotmail.com>
> To: <freebsd-questions@freebsd.org>
> Sent: Saturday, November 22, 2003 8:00 AM
> Subject: newbie: use <CR> in RE?
> 
> 
> > Hello. Just want to know how to use special character in Regular
> Expression.
> >
> > I wish to remove all the carrier returns from a text file, I can use:
> > tr -d "\r" < text_file > modified_text_file
> > But if I do:
> > sed -i s/\r//g text_file
> > it actually removes all the character "r" from the file.
> >
> > This is also a problem in vi(1). Besides <CR> I wish to manipulate
> > tabstops and line-feeds with RE too.
> >

Depending on file size I use either vi in command mode :g/^M/s///g where
is result of pressing Ctrl-V then Ctrl-M. Or for big files: 

sed 's/^M//' myfile.txt

Hope this helps.

Kind regards,
Ilya Varlashkin

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