File System Capacity Alert script

#!/bin/sh
# This script can be used to
# warn the users that
# the file system is getting full
#
# Script needs adjusted for your
# needs. Below is set to monitor
# all the file systems mounted and report to
# RECEIVER
#
# Usage: as a cron entry for best use.

[email protected]

for fs in `df -k|awk ‘{print $1}’|sed -n “3,14 p”`
do
x=`df -kl | grep $fs | awk ‘{ print $5 }’`
y=50%

if [ $x -gt $y ]
then
message=”File System `df -k |grep $fs |awk ‘{print $6\”,
\”$5}’` Full!!!”
echo $subject
echo $message | mailx -s “`hostname` – File System Full
Warning !!!” $RECEIVER
fi
done