From: Craig <cwilliams@...>
Date: 2008-08-27T00:35:47+09:00
Subject: Re: How to open Text File and then insert line in first position?

On Aug 26, 8:11 am, "Pablo Q." <paqs140...@gmail.com> wrote:
> [Note:  parts of this message were removed to make it a legal post.]
>
> Hi,
>
> I need to add a header to files, but I didn't find how open files in append
> mode ('a') but positioned in first position.
> Does anyone know how to do that?
>
> Thanks
>
> --
> Pablo Q.

Try this:

file_to_read = '/path/to/file.txt'
header = "Text to put at top of file\n\n"
file = IO.read(file_to_read)
open(file_to_read, 'w') { |f| f << header << file}

Cheers,

Craig