From: Robert Dober <robert.dober@...>
Date: 2007-06-12T05:05:44+09:00
Subject: Re: Ruby way to update a file in place

On 6/11/07, Li Chen <chen_li3@yahoo.com> wrote:
> Hi all,
>
> I just wonder what is the Ruby way to update a file in place. Do I need
> to open a temporary/new file for writing and then rename the temporary
> file?
>
> Thanks,
>
> Li
>
> --
> Posted via http://www.ruby-forum.com/.
>
No not necessarily, that depends how you can access the file, you can
use Ruby as an inplace filter on a file

ruby -i.bup -ne 'puts $_.gsub(/foo/,"bar")' somefile

will edit somefile and create a backup copy somefile.bup of the
original. Now when it comes to using files inside an application
things are little bit more complicated :(

HTH
Robert
>


-- 
You see things; and you say Why?
But I dream things that never were; and I say Why not?
-- George Bernard Shaw