cpu logger

gistfile1.txt

#!/usr/local/bin/ruby

log_file = "/var/log/cpu_stats"
date = `date`.rstrip
cpu_stats = `uptime`.split

output = ""

if Dir[log_file] == []
        output << "date,\t 1min,\t 5min,\t 15min\n"
end

output << "#{date},\t #{cpu_stats[9]}\t #{cpu_stats[10]}\t #{cpu_stats[11]}\n"
File.open(log_file, 'a') {|f| f.write(output) }