Ruby background service

I have a TCPclient written on Ruby. I want to use it in background. Currently it has a loop:

loop d开发者_Go百科o
end

So i can run a client, and it works forever.

Is there a way to run in as a service, and write a pid to file, then i'll able to kill that process by pid?

The daemons gem is made just for this.

You can use the unix system for that :

ruby myfile.rb && echo $! > my_file.pid