From: "Ball, Donald A Jr (Library)" <donald.ball@...>
Date: 2007-06-14T06:07:55+09:00
Subject: Re: Learn to Program, by Chris Pine

> -----Original Message-----
> From: list-bounce@example.com 
> [mailto:list-bounce@example.com] On Behalf Of Tm Bo
> Sent: Wednesday, June 13, 2007 4:04 PM
> To: ruby-talk ML
> Subject: Re: Learn to Program, by Chris Pine
> 
> Hello all. Thanks to all the posters who came before me! 
> You've been tremendous help. I have a quick question on 
> Chapter 11 - Reading and Writing, Section 11.3:
> 
> <quote>
> file_name = 'TestFile.txt'
> test_string = 'Nothing!'
> 
> File.open file_name, 'w' do |f|
>   f.write test_string
> end
> 
> read_string = File.read file_name
> puts(read_string == test_string)
> </quote>
> 
> I poked around the web, but I can't find out what the 'w' is 
> for. Can anyone shed any light? Muchas gracias in advance.

http://dev.rubycentral.com/ref/ref_c_file.html#open

the 'w' option opens the file for writing.

- donald