UNI/check_size.sh

#!/bin/bash
#########################################################################
#                      Script for check FREE SPACE                      #
#                           Created by PM-DoIT                          #
#                               ver 0.1                                 #
#########################################################################

#----------------------------- VARIABLES -------------------------------#
YOURMAIL="info@doit.sk, helpdesk@itline.sk"
TRESHOLD="90"
SRV=$(hostname -s)
DAT=$(date)
LOG="/tmp/var.tmp"

#------------------------------ CORE -----------------------------------#
clear
SIZE=$(df -h | grep -w "/" | awk '{print $5}' | sed 's/%//g')
if [ "$SIZE" -ge "$TRESHOLD" ];
then
        echo -e "- Free space exceeded [\e[1;33m$TRESHOLD%\e[0m / \e[1;31m$SIZE%\e[0m]"
        du /var -h -d1 | sort -srh > $LOG
        mutt -s "LOW space [$SRV] consumed ($SIZE%)" "$YOURMAIL" <$LOG
        cat $LOG | column -t
else
        echo -e "- Free space is OK [\e[1;33m$TRESHOLD%\e[0m / \e[1;32m$SIZE%\e[0m]"
fi