ruby - background/daemon process -

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I have a script that is coded down as well, I want to run it as a background / daemon process But once I start the script, I close the terminal window, which ends the program. What do I need to do to run the program 

  loop the pid = fork do .......... ................ ...... end Process.detach (pid) end    
 
 
 all above The answers actually show how easy it is to:  
  # Panning the process and staying in the existing directory process. Pneumatic (true) pipe pid = Process.fork do # Do Some Funky End Process Vitipid (PID) # Reduce CPU usage (0.1) end

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