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Re: dos2unix/d2u does nothing

> Subject:
> RE: dos2unix/d2u does nothing
> From:
> David Kilroy <>
> Date:
> Mon, 25 Nov 2002 13:33:42 -0000
> To:
>I have seen similar behaviour to what Fred sees, but I can't remember if
>that was u2d or d2u. In that case the files had mixed use of \n and \r\n
>line endings. I presumed d2u/u2d detected a single \n (or \r\n) in the first
>X bytes, and assumed the file was already in the appropriate format.
>I 'fixed' this by running u2d then d2u (or vice versa).
>>-----Original Message-----
>>From: Randall R Schulz []
>>Sent: 23 November 2002 05:12
>>Subject: Re: dos2unix/d2u does nothing
>>It works OK for me. You may be experiencing an interaction
>>with a text mode
>>mount (though from the looks of it, "conv.c" was ported for
>>cygwin to open
>>files in binary mode, so this shouldn't happen).
>>As to the mod time, perhaps you wrote the file and then
>>converted it within
>>the same minute, so "ls -l" doesn't show a change in the
>>modification time
>>(even though the difference is there at the finer time
>>resolution that the
>>OS and / or file system uses to record file modification times).
>>By the way, dos2unix and d2u are identical (byte-for-byte).
>>The other thing I can think of is that you're not running the
>>dos2unix from
>>the "cygutils" package, that the version you're running was
>>not ported to
>>Cygwin to be immune to the mount type and (conceivably) that
>>it resets the
>>file's modification time after reformatting it.
>>Randall Schulz
>>Mountain View, CA USA

Hi, All,

It's in the cygwin file tree, /usr/bin/dos2unix version 0.1.2.
The file was a few minutes old when I tried in-place conversion.
Anything is possible, regarding preserving the file timestamp
even after the conversion (afterall, I think some gzip's do that).
My "fix" is to use it as a filter.


Fred Ma,
Carleton University, Dept. of Electronics
1125 Colonel By Drive, Ottawa, Ontario
Canada, K1S 5B6

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