LinuxGSM/functions/fn_uptime

#!/bin/bash
# LGSM fn_uptime function
# Author: Daniel Gibbs
# Website: http://danielgibbs.co.uk
# Version: 011214

uptime=$(</proc/uptime)
uptime=${uptime%%.*}
minutes=$(( uptime/60%60 ))
hours=$(( uptime/60/60%24 ))
days=$(( uptime/60/60/24 ))