Check disk space usage on remote systems

#!/bin/sh

# set -x

# Shell script to monitor or watch the disk space

# It will print out volumes, if the (free available) percentage of space is >= 70%.

# -------------------------------------------------------------------------

# Set admin email so that you can get email.ADMIN="root"

# set alert level 70% is default

ALERT=70

# Exclude list of unwanted monitoring, if several partions then use "|" to separate the partitions.

# An example: EXCLUDE_LIST="/dev/hdd1|/dev/hdc5"

EXCLUDE_LIST="/junk"

#

# Files with all the hostnames

Systems[1]="file1"

Systems[2]="file2"

#

# -------------------------------------------------------------------------

#

function main_prog() {

while read output;

do

#echo $output

usep=$(echo $output | awk '{ print $1}' | cut -d'%' -f1)

partition=$(echo $output | awk '{print $2}')

if [ $usep -ge $ALERT ] ; then

echo $(hostname)" : \"$partition ($usep%)\" "

fi

done

}

#-------------------------------------------------------------------------

# Check to see if Host File exists

for FILE in ${Systems[@]}

do

if [ -f $FILE ];

then

echo "Using $FILE file"

else

echo "File $FILE does not exists. Exiting."

exit 1

fi

done

for SERVER in `cat "${Systems[@]}"`

do

ssh ${SERVER} df -H | grep -vE "^Filesystem|tmpfs|cdrom|${EXCLUDE_LIST}" | awk '{print $5 " " $6}' | main_prog

done