Disk_Usage_Check_Script.sh

#!/bin/bash 
#Auther: Mukund
#Script to check if disk usage exceeds 80% and log a warning

THRESHOLD=80 
 
df -H | grep -vE '^Filesystem|tmpfs|cdrom' | awk '{ print $5 " " $1 }' | while read output; 
do 
usage=$(echo $output | awk '{ print $1}' | cut -d'%' -f1) 
partition=$(echo $output | awk '{ print $2 }') 

if [ $usage -ge $THRESHOLD ]; then 
echo "Warning: Disk usage on $partition is at ${usage}%" 
fi 
done