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devel / comp.unix.shell / Re: removing repeating/duplicate control char

Re: removing repeating/duplicate control char

<tt175u$tptl$1@dont-email.me>

https://www.rocksolidbbs.com/devel/article-flat.php?id=6017&group=comp.unix.shell#6017

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From: spender@yeah.net (spender)
Newsgroups: comp.unix.shell
Subject: Re: removing repeating/duplicate control char
Date: Tue, 21 Feb 2023 09:35:56 +0800
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by: spender - Tue, 21 Feb 2023 01:35 UTC

在 2013/3/16 3:31, peter sands 写道:
> Hello,
>
> I have a text file where I need to get rid of a repeating control character, I have tried sed and tr but not getting the results I expect.
> The text file is as an example:
>
> ^M
> text here
> text here
> ^M^M
> text here
> text here
> ^M
>
> I need to remove the repeating character of ^M so I have:
>
> ^M
> text here
> text here
> ^M
> text here
> text here
> ^M
>
> Any idea's please
> PS

USE sed command , find and replace: sed -n ':a;N;$!ba;s/\n\r\r\n/\n/g'
filename

Re: removing repeating/duplicate control char

<tt21do$13cnu$1@dont-email.me>

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From: janis_papanagnou+ng@hotmail.com (Janis Papanagnou)
Newsgroups: comp.unix.shell
Subject: Re: removing repeating/duplicate control char
Date: Tue, 21 Feb 2023 10:03:52 +0100
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by: Janis Papanagnou - Tue, 21 Feb 2023 09:03 UTC

On 21.02.2023 02:35, spender wrote:
> 在 2013/3/16 3:31, peter sands 写道:
^^^^^^^^^^^
>> Hello,
>>
>> I have a text file where I need to get rid of a repeating control
>> character, I have tried sed and tr but not getting the results I expect.
>> The text file is as an example:
>> [...]
>
> USE sed command , find and replace: sed -n ':a;N;$!ba;s/\n\r\r\n/\n/g'
> filename

After these 10 years that passed since his post I suppose that peter
sands could have even carved the duplicate control characters out of
marble using a chisel instead of sed.

Janis

Subject	Author
Re: removing repeating/duplicate control char	spender
Re: removing repeating/duplicate control char	Janis Papanagnou