Comments on: HowTo: UNIX / Linux Convert DOS Newlines CR-LF to Unix/Linux Format

By: Steen

Steen — Sun, 29 Jan 2012 22:50:33 +0000

Even easier:
$cd dir/with/stuff
$dos2unix *

By: Steen

Steen — Sun, 29 Jan 2012 22:49:32 +0000

Thanks!
I was just about to write a shellscript for this, but then I just googled it because I forgot if it was /n to /r or how :P It works!!!

Side note:
For people with problems about duplicates moved from Windows to Linux on Garry’s Mod servers they should use “dos2unix STEAM*/*.txt” to avoid trying to convert directories. There’s a lot of trouble with user created directories otherwise. The program tries to convert directories – which is a bit annoying.

By: Vivek Gite

Vivek Gite — Wed, 10 Nov 2010 10:47:17 +0000

Use bash for loop:

for f in /path/to/src/*
do
dos2unix "$f"
done

By: sankar

sankar — Wed, 10 Nov 2010 08:12:04 +0000

I have to convert 50 files at one shot to Unix format. Is there a way to do it?

By: Allan

Allan — Tue, 05 Oct 2010 14:25:39 +0000

The sed … echo \\\r worked fine for us on AIX version 6.1 to convert Unix to DOS. Thanks!

By: Dzmitry Lazerka

Dzmitry Lazerka — Fri, 13 Nov 2009 09:33:25 +0000

sed ‘s/$’”/`echo \\\r`/” input.txt > output.txt
leaves one extra CR at the end of the file.
This makes the suggestion broken.

By: David Schiavone

David Schiavone — Thu, 13 Aug 2009 10:49:54 +0000

Impressive i would say.. I used dos2unix on CentOS 5.3 without any problems and a file of 300,000 got modified in less then 15 secs… compared it to using notepad++ on windows and your computer would freeze up for at least 2 mins for the same file ;).

By: Calvin Smith

Calvin Smith — Wed, 12 Dec 2007 06:23:03 +0000

Dear John,

Actually, the scripts are correct. Hexdump is reversing the byte order (integer format)

Try this for example and as a simplified script:

$ echo TEST | sed ‘s/$/\r/’ | hexdump -C

Then try it without the -C.
You will notice that the 54′s (T) are next to each other. (ETTS)

By: John Cairns

John Cairns — Wed, 05 Sep 2007 14:44:27 +0000

Your UNIX to DOS sed script is incorrect if what you want is CRLF.

$ echo | sed ‘s/$’”/`echo \\\r`/” | hexdump
0000000 0a0d

ASCII 0/13 is decimal 013, hex 0d, octal 015, bits 00001101: called ^M, CR
Official name: Carriage Return

ASCII 0/10 is decimal 010, hex 0a, octal 012, bits 00001010: called ^J, LF, NL
Official name: Line Feed

For CRLF you want 0d0a. Your producing LFCR here.

By: nigel

nigel — Fri, 02 Feb 2007 13:42:27 +0000

I had tried the suggestion from Wikipedia and that did not work. This solution worked perfectly first time. THANK YOU.

By: bruce wolford

bruce wolford — Thu, 04 Jan 2007 02:10:25 +0000

Howto: UNIX or Linux convert DOS newlines CR-LF to Unix/Linux format

THANK YOU! to who ever wrote this. I’ve been messing around with this for quite a while. This even works on AIX’s legacy version of sed. My day has been so made by this little nugget.