Disk Space Monitoring script

Disk space is the amount of data stored in a Disc Mount in Operating systems.Monitoring the disc space is important to avoid the issues to current running services.

• Disc_Space_Monitoring script.sh

#!/bin/bash
HOSTNAME=`/usr/bin/hostname`

#Specify the mounts names below
Mount[0]=/devices
Mount[1]=/dev
Mount[2]=/temp

# Values which we need to get the alerts when mount reached to that level (%)
Threshold_value=40

Subject="Disk Space Monitoring alert"
ToList="admin@blog.com admin2@blog.com"
Sender="discgroup@blog.com"

Message="Your Custom Message"

for i in "${Mount[@]}"
do
       Mount_value=`df -h $i | awk '{print$5}' | tail -1 | cut -d '%' -f 0-1`
if [ "$Mount_value" -ge "$Threshold_value" ]; then
     
echo $Message | /usr/bin/mailx -s "$Subject" -r "$Sender" "$ToList"
fi
done

• Enable the crontab utility  and add the below configuration line

0,15,30,45,50 * * * * cd /data/Disc_Space_Monitoring script; ksh Disc_Space_Monitoring script.sh

 >/dev/null 2>&1

Note: To know more about Crontab  Please refer the link Crontab