From: Tim Hunter <TimHunter@...>
Date: 2009-10-07T06:51:26+09:00
Subject: Re: How to not display output of a system call.

Jerry Mr wrote:
> Also, how do you make the program pause for a few seconds.

$ ri Kernel#sleep
----------------------------------------------------------- Kernel#sleep
      sleep([duration])    => fixnum

      From Ruby 1.9.1
------------------------------------------------------------------------
      Suspends the current thread for duration seconds (which may be any
      number, including a Float with fractional seconds). Returns the
      actual number of seconds slept (rounded), which may be less than
      that asked for if another thread calls Thread#run. Zero arguments
      causes sleep to sleep forever.

         Time.new    #=> 2008-03-08 19:56:19 +0900
         sleep 1.2   #=> 1
         Time.new    #=> 2008-03-08 19:56:20 +0900
         sleep 1.9   #=> 2
         Time.new    #=> 2008-03-08 19:56:22 +0900


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