#!/bin/bash

# diskfull.sh - by dual
# Emails user when disk reaches a certain capacity

DRV=/dev/sda1
MAX=80

USE=$(df -h | grep $DRV | awk '{print $5}' | sed 's/%$//')

if [ $USE -gt $MAX ]; then
	echo "Check disk..." | mail -s "Disk at $MAX%!" user@host
fi