#!/bin/sh

# Always print uptime in three columns.
# Two case; case time < 1d, print h m s
# case time > 1d, print d h m

time=$(cat /proc/uptime)
time="${time%%.*}"


if [ ${time} -ge 86400 ]
then
    day=$(($time / 86400))
    time=$((${time} - day * 86400))
    hour=$(($time / 3600))
    time=$(($time - hour * 3600))
    minutes=$(($time / 60))
    time=$((time - minutes * 60))
    echo "${day}d ${hour}h ${minutes}m"
else
    hour=$(($time / 3600))
    time=$(($time - hour * 3600))
    minutes=$(($time / 60))
    time=$((time - minutes * 60))
    echo "${hour}h ${minutes}m ${time}s"
fi