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Cron job script to give a disk space usage alert email
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#!/bin/sh | |
# this script was initially written for Redhat/CentOS | |
# file is /etc/cron.daily/diskAlert.cron | |
# requires enabling outgoing sendmail from localhost to a valid | |
# smtp server, which is usually disabled by default | |
ADMIN="jausten@adomain.com,another@adomain.com" | |
THRESHOLD=90 | |
df -PkH | grep -vE '^Filesystem|tmpfs|cdrom|media' | awk '{ print $5 " " $6 }' | while read output; | |
do | |
usep=$(echo $output | awk '{ print $1}' | cut -d'%' -f1 ) | |
partition=$(echo $output | awk '{print $2}' ) | |
if [ $usep -ge $THRESHOLD ]; then | |
echo "Running out of space \"$partition ($usep%)\" on $(hostname) as on $(date)" | | |
mail -s "Alert: Almost out of disk space $usep%" $ADMIN | |
fi | |
done |
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