From: ts <decoux@...>
Date: 2002-03-10T21:06:31+09:00
Subject: Re: Text stuff and appending to a file

>>>>> "B" == Bob  <bobx@linuxmail.org> writes:

B> I would like the lines that it finds with "bob" to print to the
B> console and append to the logfile.

 Well, you have also the stupid way to do it

moulon% cat b.rb
#!/usr/bin/ruby
class << $defout
   attr_reader :aux
   def aux=(a)
      @aux.close if @aux
      @aux = a
   end
   def write(s)
      super
      @aux.write(s) if @aux
   end
end

input = File.open(ARGV[0], "r")
$defout.aux = File.new("badwords.txt", "a")
input.each do |line|
   print "first : #{line}" if /bob/i =~ line
end
$defout.aux = nil
input.rewind
input.each do |line|
   print "second : #{line}" if /bob/i =~ line
end
moulon% 

moulon% cat a
bob1
aaaa
bob2
moulon% 

moulon% b.rb a
first : bob1
first : bob2
second : bob1
second : bob2
moulon% 

moulon% cat badwords.txt 
first : bob1
first : bob2
moulon% 


Guy Decoux