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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="[email protected],[email protected]" | |
| 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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