#!/usr/bin/ruby

for list in `ls | grep rrd`

    rrd_out = `rrdtool fetch ./switch01_traffic.rrd AVERAGE`

    # remove ':' after timestamp
    rrd_fixed = rrd_out.gsub(':','')

    # print corrected output
    rrd_fixed.each do |line|
        puts list,line.gsub(' ', ',')
    end
end