#!/bin/bash

START=$(date +%s)

rrdtool create trafic_wlan0.rrd --step 60 --start $START \
        DS:rx:COUNTER:120:0:U \
        DS:tx:COUNTER:120:0:U \
        RRA:LAST:0.5:1:1440 \
        RRA:AVERAGE:0.5:5:2016 \