#!/bin/sh

icon="^b#282828^^c#dfdfdf^  ^d^ "
total=$(free -h | awk '/^Mem:/ {print  $3/$2}')
percent=$(printf %3s $(printf %-4s $total | tr ' ' '0' | cut -c1-4 | sed -e 's/\.//g' | sed -e 's/^0//g') | tr ' ' ' ')

if [ $percent -gt 75 ]
then
    icon="^b#282828^^c#ff0000^ "
elif [ $percent -gt 50 ]
then
    icon="^b#282828^^c#ffff00^ "
else
    icon="^b#282828^^c#dfdfdf^ "
fi

echo "$icon"