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Date: Fri, 21 Sep 2001 21:26:09 -0700
From: Julian Elischer <julian@elischer.org>
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To: Mario Sergio Fujikawa Ferreira <lioux@uol.com.br>
Cc: freebsd-hackers@freebsd.org
Subject: Re: bug in shell `` expansion code?
References: <20010922011302.A44620@exxodus.fedaykin.here>
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Mario Sergio Fujikawa Ferreira wrote:
> 
> Hi,
> 
>         While working on a make .mk code, I and Chris Wasser (TDF
> on IRC) came across an interesting behavior:
> 
> sh -c 'TDF="echo a && echo b";for i in `${TDF}`; do echo "i:$i"; done'
> 
> This should return:
> 
> i:a
> i:b
> 
> instead, it returns:
> 
> i:a
> i:&&
> i:echo
> i:b
> 
>         If this is not a bug, how do we get it working?

try:
julian@jules:sh -c 'TDF="echo a && echo b";for i in `eval ${TDF}`; do echo
"i:$i"; done'
i:a
i:b

the trouble is that TDF is interpretted as a single string including spaces
where you want to interpret is as a list of separate words


> 
>         Regards,
> 
> --
> Mario S F Ferreira - UnB - Brazil - "I guess this is a signature."
> lioux at ( freebsd dot org | linf dot unb dot br )
> flames to beloved devnull@someotherworldbeloworabove.org
> feature, n: a documented bug | bug, n: an undocumented feature
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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-- 
+------------------------------------+       ______ _  __
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|  /       \ julian@elischer.org     +------>x   USA    \ a very strange
| (   OZ    )                                \___   ___ | country !
+- X_.---._/    presently in San Francisco       \_/   \\
          v

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