From: Panagiotis Atmatzidis <atma@...>
Date: 2009-12-13T05:05:03+09:00
Subject: Question about file management [read]

A salut to the list,

I need read info from a file, extract the info that I want which is the date and IP and dump them into a database (mysql).

However, this file gets constantly updated, sits on /var/log/.

Until now I have used just the file.open and file.read methods. However, I feel that both ways are not suitable for what I want to do, because I will need to make a selection between old and new entries every time my script reads the file to extract info.

What is the *standard* (or best) way to manage this situation?

Here is the class which reads the file:

class ReadIPs
  def self.ip(log) 
    file = File.open(log)
    file.each_line do |line| 
      if line.include?("Ban")
         a = line.split(" ")
         date = a[0]
         ip = a[6]
         puts "date: #{date} IP: #{ip}"
      end
    end
    file.close
  end
end

I use File.open now but I should use something like File.append or similar? Note that I will never write to this file, it's just the file that contains the info. Every time a new line appears that contains the word "Ban" I want to trigger this...

Best regards

Panagiotis (atmosx) Atmatzidis

email:	atma@convalesco.org
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