asked on 6/2/2021

End of line CRLF (\ r \ n) instead of LF (\ n)

Hello,

How is it possible to replace in file shell linux ?
Thank you

Regards

End of line CRLF (\ r \ n) instead of LF (\ n)

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Linux Shell Scripting

Last Comment

Bill Prew

6/12/2021

ASKER CERTIFIED SOLUTION

Kent Olsen

6/2/2021

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noci

6/2/2021

when in a pipeline you can use: tr -d '\r'

echo -e "\r\n\r\n\r\n" | tr -d '\r' | od -c

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David Favor

6/2/2021

Easy approach...

dos2unix file-list-to-fix

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simon3270

6/3/2021

I think you are trying to change from LF to CRLF, so

sed -i 's/$/\r/' file_to_change.txt

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arnold

6/3/2021

Much depends on what you are doing and how it is reflected.

\r ^M
cat -v your text file to see what you are dealing

Bill Prew

6/3/2021

As Kent and David mentioned, dos2unix is the way to do this, and should be part of most unix builds these days. You can also go the other way, converting <LF> to <CR><LF> via the counterpart command unix2dos.

Linux dos2unix, unix2dos command help and examples

»bp

simon3270

6/3/2021

I suggested unix2dos on the other question, but bibi92 said they couldn't install extra software. unix2dos is not present by default on Raspberry Pi OS.

arnold

6/3/2021

you can use python, perl, tr if avalable sed, etc.

cat -v can help confirm what you have and what you want to get rig of.
ctrl-v+key will enter its control character

noci

6/3/2021

@bill: Kent Olsen already mentioned dos2unix before, david was the 2nd mention.

Bill Prew

6/4/2021

@bill: Kent Olsen already mentioned dos2unix before, david was the 2nd mention.

Thanks, I adjusted my prior post.

»bp

Bill Prew

6/12/2021

SED seems like the simplest approach, have you tried that?

»bp