From: Venkat Venkataraju <outofjungle@...>
Date: 2005-05-12T05:34:04+09:00
Subject: Infinite loop program w/ IO.popen

Hi All

I'm trying to write a ruby program that will constantly read a open
pipe, line by line and then log it onto another file. but when i try to
run this script with an & at the end, the program stops as soon as it
starts.

here is the listing of the code. if the script is run normaly without
any & in the end, it works.

#! /usr/bin/env ruby
# loop.rb: infinite loop program

ostream = File.new("junk.log", "w")
pipe = IO.popen("top");

if $0 == __FILE__
	while true
		ostream.puts(pipe.readline)
		ostream.flush
		sleep(1)
	end
end

I know that the reason for teh termination of the code has to do
somethign with the pipe. is this a normal behavior?

i would like to execute this code without depending on the console. is
it possible to do so? or if not, is there any other solution?

Thanks
Venkat