Monitor Disk Space Usage

#!/usr/bin/ksh
### Script to check disk space usage
### if exceeds the limit then send message to DBAs
### clear last run
###Author:Anbu Subramanian
###Date:10/21/2002
DBA_TEAM= anbus@1234.com
rm $HOME/check_disk_space/diskspace
touch $HOME/check_disk_space/diskspace
echo "EARTH Server" > $HOME/check_disk_space/diskspace
echo " " >> $HOME/check_disk_space/diskspace
send=0
#script
for filesystems in `df -k awk '{ print $1 }' grep /dev/`
do
count=`df -k $filesystems awk {'print $5'} grep -v capacity cut -d "%" -f 1 `
if [ $count -gt 90 ]
then
echo $filesystems "filesystem is" $count "Percent Full" >> $HOME/check_disk_space/diskspace
echo " " >> $HOME/check_disk_space/diskspacesend=5
#echo $count
fi
done
if [ $send -gt 1 ]
then
mailx -s "DISK $count FULL IN EARTH SERVER" $DBA_TEAM < $HOME/check_disk_space/diskspace
fi
exit