Disk usage monitoring script

[Matthew]

It is very important to check the disk space usage of different partitions on Linux box.
Any partition run out fo disk space can cause several known and unknown issues.
Following is a free shell script which can be used in cron to check the disk usage of partition
and notify by sending an alert to provided email ID in script.

#!/bin/bash

df -h | grep -v 'Use' | awk '{print $5" : "$6}' | replace '%' '' > /tmp/DiskPercent

for i in `cut -f 1 -d : /tmp/DiskPercent`

do

if [ $i -ge "90" ];

then

echo partition `grep $i /tmp/DiskPercent | cut -f 2 -d :` running out of disk space on `hostname` >> /tmp/disk-overusage

fi

done

if [ -f /tmp/disk-overusage ];
then

mail -s "URGENT `hostname` running out of disk space" support@micfo.com < /tmp/disk-overusage

fi

rm -f /tmp/disk-overusage /tmp/DiskPercent

create a file say (/home/disk-usage.sh ) give executable permissions and add in cron to run after particular time intervals (say 3 hours)
The cron would be like this.

0 */3 * * * /home/disk-usage.sh /dev/null 2>&1

[Richie]

Thanks Matthew for that script. I'll soon try it out for me.

[Matthew Barthorpe]

Thanks Matthew,its surely going to be handy for everyone.