#!/bin/sh
#Checks percentage of free space
percent=`df -k  / | tail  -1 | gawk '{print $5}' | sed 's/%//'`

if [ $percent  -gt 80 ]; then
	echo Warning disk on `uname -n` over 80 percent full
else
	echo Disk on `uname -n` is only ${percent}% full
fi