#!/usr/bin/ruby
 
 data = File.open( "/proc/meminfo", "r" ).readlines.each do | line |
     title, size, dummy = line.split()
     case title
     when "MemTotal:"
         @real_total = size.to_i
     when "MemFree:"
         @real_free = size.to_i
     when "SwapTotal:"
         @swap_total = size.to_i
     when "SwapFree:"
         @swap_free = size.to_i
     end
 end
 data = IO.popen( "/usr/bin/uptime", "r" ).read.split
 
 @real_use = @real_total - @real_free
 @swap_use = @swap_total - @swap_free
 
 STDOUT  "#{@real_use/1024}\n"
 STDOUT  "#{@swap_use/1024}\n"
 STDOUT  "#{data[2].chop!}\n"
 STDOUT  "inspron\n"

 Target[mem]: `/home/www-data/mrtg/mem.rb`
 MaxBytes1[mem]: 512
 MaxBytes2[mem]: 256
 Title[mem]: 公開版メモリ使用率
 Options[mem]: gauge, absolute, growright
 YLegend[mem]: Mem Use[MByte\]
 ShortLegend[mem]: MByte

 LegendI[mem]: 実メモリ
 LegendO[mem]: スワップ