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Posted By

gtcaz on 04/09/08


Tagged

osx leopard battery laptop stats


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zingo


Get OSX Leopard Battery Stats For Your Laptop

Published in: Ruby 

Plain TextExpand 
  1. #!/usr/bin/env ruby -wKU
  2. res = Array.new
  3. res = %x(/usr/sbin/ioreg -p IODeviceTree -n "battery" -w 0).grep(/Battery/)[0].match(/\{(.*)\}/)[1].split(',')
  4. stats = Hash.new
  5.  
  6. res.each do |d| 
  7.   key, val = d.split("=")
  8.   key.downcase!.delete!(" ")
  9.   if key =~ /\"(.*)\"/
  10.     key = $1
  11.   end
  12.   stats[:"#{key}"] = val
  13. end
  14.  
  15. puts
  16. puts "-------------------------------"
  17. puts "         Battery Stats"
  18. puts "-------------------------------"
  19. puts
  20. stats.each { |k, v| puts "#{k} => #{v}" }
  21. percentOfOriginal = (stats[:capacity].to_f / stats[:absolutemaxcapacity].to_f) * 100
  22. puts "Battery capacity is currently #{sprintf("%.2f", percentOfOriginal)}% of original."

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Posted By: zingo on April 9, 2008

Works on 10.4 (Tiger) too. Have a look for a dirty cli variant: http://snipplr.com/view/5049/get-infos-on-battery-on-osx/

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