From: Patrick Okui <pokui@...>
Date: 2009-08-19T19:29:52+09:00
Subject: Re: copying values from a different file into variables

On Aug 18, 2009, at 10:23 AM, Shekar Ls wrote:

> I would like to copy specific lines(contents) from file1 into file2.

You'd generally get more help if you try to do some of the work and  
then post if/when you get stuck.

>
> # File1 has following information:
>
> browser = "firefox"
> id = "test@testuser.com"
> password= "12345678"
> account = "Yes"
>
>
> # I want the following information in File2 :
>
> @var1 = "firefox"   (value of browser from File1)
> @var2 = "test@testuser.com"  (value of id from File1)
> @var3 = "12345678" (value of password from File1)
>
> How do i get this done using ruby. Please let me know if you require
> more clarification on this front.


I haven't used ruby that long but something like

File.open("file2", "w") do |f2|
   count = 1
   File.foreach("file1") do |line|
     f2 << line.sub(/^[\w\s]+=/, "@var#{ count } =")
     count += 1
   end
end

could work. (skipping the creation of @var4 for the "account" line is  
left as an exercise for the OP)

--
patrick