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How to check disk level in Linux and mail an alert
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| ADMIN="[email protected]" | |
| # set alert-level 90 % standard | |
| ALERT=10 | |
| df -h | grep -vE '^Filesystem|tmpfs|cdrom' | 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 $ALERT ]; then | |
| echo "space low on \"$partition ($usep%)\", on server $(hostname) at $(date)" | | |
| mail -s "Alert: Free space low, $usep % used on $partition" $ADMIN | |
| fi | |
| done |
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| #!/bin/bash | |
| CURRENT=$(df / | grep / | awk '{ print $5}' | sed 's/%//g') | |
| THRESHOLD=90 | |
| if [ "$CURRENT" -gt "$THRESHOLD" ] ; then | |
| mail -s 'Disk Space Alert' [email protected] << EOF | |
| Your root partition remaining free space is critically low. Used: $CURRENT% | |
| EOF | |
| fi |
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