From: Richard Schneeman <thedickster@...>
Date: 2008-08-24T08:39:51+09:00
Subject: Re: Open file, get first line, delete first line close file

Richard Schneeman wrote:
> 
> 
> 
> That is one option...the reason i need to be able to delete lines, is 
> that i am running a rake task on a server, that i cannot easily modify 
> files, and I can't predict how long the rake task will time out. The 
> task takes entries from text based dictionaries and adds it to my DB, 
> the thing is, if i didn't delete the lines i've already added, everytime 
> i ran the task, (it has to be run multiple times due to timeouts) i 
> would only re-add the same lines. The deletion acts as a place holder of 
> sorts. I'll play around with your suggestion, and i'll let you know. If 
> anyone else has an alternate method...i'm all ears

Its gross but it works

active_dictionary = 
File.readlines("public/languages/chinese/practice.txt")

         open('public/languages/chinese/practice.txt', 'w') do |file|
             file.puts active_dictionary[1,active_dictionary.size]
         end

Once again, i'm interested in different approaches, or something, not 
quite so processor intensive
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