Message-ID: <4574AE59.5080801@cygwin.com>
Date: Mon, 04 Dec 2006 18:25:13 -0500
From: "Larry Hall (Cygwin)" <reply-to-list-only-lh AT cygwin DOT com>
Reply-To: cygwin AT cygwin DOT com
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To: cygwin AT cygwin DOT com
Subject: Re: bash CRLF problems (I have read the recent announcement)
References: <7794 DOT 1165273150 AT gemini DOT franz DOT com>
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Kevin Layer wrote:
> I'm really perplexed by the following behavior:
> 
> rfr AT mad64 ~
> $ cat -v foo1.sh
> echo 8010 > foo1.out
> 
> rfr AT mad64 ~
> $ cat -v foo2.sh
> sh foo1.sh
> version=`cat foo1.out`
> echo ${version}.bar > foo2.out
> cat -v foo2.out
> 
> rfr AT mad64 ~
> $ sh foo2.sh
> 8010^M.bar^M
> 
> rfr AT mad64 ~
> $ mount
> C:\cygwin\bin on /usr/bin type system (textmode)
> C:\cygwin\lib on /usr/lib type system (textmode)
> C:\cygwin on / type system (textmode)
> c: on /c type system (textmode)
> z: on /z type system (textmode)
> 
> rfr AT mad64 ~
> $
> 
> 
> The (real) scripts involved run on non-Windows platforms, so putting
> in `d2u' isn't an option.  I'd rather not resort to `tr' either, since
> I have a large number of places to fix.  Large.
> 
> The bug, IMO, is the assigment to version of `cat foo1.out` contains a
> ^M.  I'm on a text mount, so this is counter to what I thought would
> happen.


Time to adjust your expectations. ;-)  Text mounts write CRNL as EOLs
for all files that are not explicitly opened as binary (or text for
that matter).  Text mounts remove the CR from EOLs read from files that
are not explicitly opened as binary (or text).  'cat' explicitly opens
the file as binary.  If you need it to work otherwise, write a simple
wrapper.  Or just do the easy thing and change your mode to 'binary'
and run 'd2u' on your local versions of the scripts.  This is most
compatible with the majority of "non-Windows" platforms. ;-)


-- 
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746

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