Hello Aaron, thank your for respond.I do not have problem anymore. The root 
cause was file coding which was utf-16.For some strange reasons MKS Toolkit ksh 
egrep creates utf-16 files on default and may create utf-8 if certain option 
are used.Loops do not work on utf-16 coded files.


Thank you,
 
Gene Golub

 > From: [email protected]
> Date: Sat, 4 May 2013 02:35:35 -0400
> To: [email protected]
> Subject: Re: [ast-users] Need your advise on loop coding
> 
> On Mar 28, 2013, at 8:19 AM, gene golub wrote:
> 
> > What's so unusual about this file I do not get it.
> 
> it's UTF-16
> 
> convert it to UTF-8 and it should work
> 
> it's also CRLF, which may or may not be relevant
> 
> if you're still having issues, convert it to LF
> 
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