newbie: use <CR> in RE?

[M.D. DeWar]

i find this and seems to work good.
cat {filename} | tr -d '/r' > out; mv out {new filename}

It gets rid of all them ^M from the files for me.

HTH
Mark
----- Original Message ----- 
From: "Zhang Weiwu" <weiwuzhang at hotmail.com>
To: <freebsd-questions at 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.
>
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