Re: (feature request) here-document, but from a file

[William Park]

On Sat, Jul 02, 2005 at 05:48:40PM -0600, Bob Proulx wrote:
> Chris F.A. Johnson wrote:
> > William Park wrote:
> > >It would be nice if I can read a file and process it as though it was
> > >here-document text in the script.  Mainly, I want variable substitution,
> > >without calling lots of 'sed'.
> > >
> > >In Python, you would do
> > >   print "..." % ...
> > >
> > >So, perhaps, you can use syntax like
> > >   cat <<+ file
> > >   cat <<<< file
> > 
> >     Why can't you use:
> > 
> > cat < file
> 
> The original poster said that the behavior wanted was variable
> substitution as in a here-document.  Using 'cat < file' would not
> expand any variables.
> 
> However counter proposals are useful.  Will this work for you?
> 
>   eval echo $(<file)
> 
> That will expand variables from the file using existing standard syntax.

If the file contains '<' or '>' (like HTML), then it will do
redirection.  Probably, not good thing. :-)

-- 
William Park <opengeometry@yahoo.ca>, Toronto, Canada
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