Search Exchange

Search All Sites

Nagios Live Webinars

Let our experts show you how Nagios can help your organization.

Contact Us

Phone: 1-888-NAGIOS-1
Email: sales@nagios.com

Login

Remember Me

Directory Tree

CheckDirSize

Rating
9 votes
Favoured:
0
Hits
172218
Files:
FileDescription
check_dirsize.shCheckDirSize V1.0
check_dirsize11.shCheckDirSize V1.1 (with perfdata option)
Nagios CSP

Meet The New Nagios Core Services Platform

Built on over 25 years of monitoring experience, the Nagios Core Services Platform provides insightful monitoring dashboards, time-saving monitoring wizards, and unmatched ease of use. Use it for free indefinitely.

Monitoring Made Magically Better

  • Nagios Core on Overdrive
  • Powerful Monitoring Dashboards
  • Time-Saving Configuration Wizards
  • Open Source Powered Monitoring On Steroids
  • And So Much More!
Monitor size of directory and notify if size exceedes threshold. Shell script (sh), GPL
## Description

This plugin determines the size of a directory (including sub dirs) and compares it with the supplied thresholds. It might also be used to monitor a regular file instead of a directory.

Usage: check_dirsize -d -w -c -f

## Output:

The plugin prints the size of the directory in KB followed by "ok" or either "warning" or "critical" if the corresponing threshold is reached.

Exit Codes
0 = OK (Directory size checked and everything is ok)
1 = Warning (Directory size above "warning" threshold)
2 = Critical (Directory size above "critical" threshold)
3 = Unknown (Invalid command line arguments or could not determine directory size)

## Example

check_dirsize -d . -w 1000 -c 1400

121 KB - ok (exit code 0)
1234 KB - warning (exit code 1)
1633 KB - critical (exit code 2)

## Changes in V1.1
CheckDirSize now generates perfdata if desired (option -f). Thanks to Jose Vicente Mondejar.
Reviews (6)
There is a bug in the script.

the command line option -perfdata should be --perfdata in the code.

--perfdata is not recognized.
bynishith, December 30, 2019
I'm using NRPE on Client Side. Below is the configuration.

Upload "check_dirsize11.sh" script on Nagios Client Node under "/usr/lib64/nagios/plugins/" directory.

Open nrpe.cfg file & append new line as follows.
vim /etc/nagios/nrpe.cfg
command[check_syslog_dir]=/usr/lib64/nagios/plugins/check_dirsize11.sh -d /var/log/

Restart NRPE Service.
systemctl restart nrpe

Now on the Nagios Server Side, configure remote host as follows:

define service{
use generic-service
host_name linuxbox1.example.local
service_description SYSLOG Directory Size
check_command check_nrpe!check_syslog_dir
}

Save & Exit.

You can also run the NRPE Command from Nagios Server to get the output. The command is,

/usr/local/nagios/libexec/check_nrpe -H 172.16.1.96 -c check_syslog_dir

Important Note:

If you're getting sudo error to access "DU" command, append below line inside Nagios client sudo file.
%nagios ALL=(ALL) NOPASSWD:ALL

Now, modify "check_dirsize11.sh" plugin, line no:46
DU="/usr/bin/sudo /usr/bin/du"

If you want directory size output in "GB", then change line no. 159 as follows.

duresult=`$DU -sh $dirpath 2>&1` || error="Error"

(Replace -sk with -sh)

That's it.
byAposwolf, December 27, 2017
I modified the script, now there is also a -m or --metric flag, where you can select which format the warn and crit input and the echo output should be (KB, MB, GB or TB)
Here it is:

#!/bin/sh
#
# ## Plugin for Nagios to monitor directory size
# ## Written by Gerd Stammwitz (http://www.enbiz.de/)
# ##
# ## - 20040727 coded and tested for Solaris and Linux
# ## - 20041216 published on NagiosExchange
# ## - 20070710 modified by Jose Vicente Mondejar to add perfdata option
#
#
# ## You are free to use this script under the terms of the Gnu Public License.
# ## No guarantee - use at your own risc.
#
#
# Usage: ./check_dirsize -d -w -c
#
# ## Description:
#
# This plugin determines the size of a directory (including sub dirs)
# and compares it with the supplied thresholds.
# It might also be used to monitor a regular file instead of a directory.
#
# ## Output:
#
# The plugin prints the size of the directory in KB followed by "ok" or
# either "warning" or "critical" if the corresponing threshold is reached.
#
# Exit Codes
# 0 OK Directory size checked and everything is ok
# 1 Warning Directory size above "warning" threshold
# 2 Critical Directory size above "critical" threshold
# 3 Unknown Invalid command line arguments or could not determine directory size
#
# Example: check_dirsize -d . -w 1000 -c 1400
#
# 121 KB - ok (exit code 0)
# 1234 KB - warning (exit code 1)
# 1633 KB - critical (exit code 2)


# Paths to commands used in this script. These
# may have to be modified to match your system setup.

PATH=""

DU="/usr/bin/du"
CUT="/usr/bin/cut"
WC="/usr/bin/wc"

PROGNAME=`/usr/bin/basename $0`
PROGPATH=`echo $0 | /bin/sed -e 's,[\\/][^\\/][^\\/]*$,,'`
REVISION="Revision 1.1"
AUTHOR="(c) 2004,2007 Gerd Stammwitz (http://www.enbiz.de/)"

# Exit codes
STATE_OK=0
STATE_WARNING=1
STATE_CRITICAL=2
STATE_UNKNOWN=3
STATE_DEPENDENT=4

print_revision() {
echo "$REVISION $AUTHOR"
}

print_usage() {
echo "Usage: $PROGNAME -d|--dirname [-w|--warning ] [-c|--critical ] [-f|--perfdata] [-m|--metric ]"
echo "Usage: $PROGNAME -h|--help"
echo "Usage: $PROGNAME -V|--version"
echo ""
echo " must be KB, MB, GB or TB"
}

print_help() {
print_revision $PROGNAME $REVISION
echo ""
echo "Directory size monitor plugin for Nagios"
echo ""
print_usage
echo ""
}

# Make sure the correct number of command line
# arguments have been supplied

if [ $# -lt 1 ]; then
print_usage
exit $STATE_UNKNOWN
fi

# Grab the command line arguments

thresh_warn=""
thresh_crit=""
metric="KB"
perfdata=0
exitstatus=$STATE_WARNING #default
while test -n "$1"; do
case "$1" in
--help)
print_help
exit $STATE_OK
;;
-h)
print_help
exit $STATE_OK
;;
--version)
print_revision $PROGNAME $VERSION
exit $STATE_OK
;;
-V)
print_revision $PROGNAME $VERSION
exit $STATE_OK
;;
--dirname)
dirpath=$2
shift
;;
-d)
dirpath=$2
shift
;;
--warning)
thresh_warn=$2
shift
;;
-w)
thresh_warn=$2
shift
;;
--critical)
thresh_crit=$2
shift
;;
-c)
thresh_crit=$2
shift
;;
--metric)
metric=$2
shift
;;
-m)
metric=$2
shift
;;
-f)
perfdata=1
;;
-perfdata)
perfdata=1
;;
*)
echo "Unknown argument: $1"
print_usage
exit $STATE_UNKNOWN
;;
esac
shift
done

##### Get size of specified directory
error=""
duresult=`$DU -s $dirpath 2>&1` || error="Error"
if [ ! "$error"="" ]; then
errtext=`echo $duresult | $CUT -f3 -d":"`
echo "$error:$errtext"
exit $STATE_UNKNOWN
fi

dirsize=`echo $duresult | $CUT -f1 -d" "`
result="ok"
exitstatus=$STATE_OK

##### Compare with thresholds
calc_value=1
case $metric in
"MB")
calc_value=$((dirsize / 1024))
thresh_warn=$((thresh_warn * 1024))
thresh_crit=$((thresh_crit * 1024))
;;
"GB")
calc_value=$((dirsize / 1024 / 1024))
thresh_warn=$((thresh_warn * 1024 * 1024))
thresh_crit=$((thresh_crit * 1024 * 1024))
;;
"TB")
calc_value=$((dirsize / 1024 / 1024 / 1024))
thresh_warn=$((thresh_warn * 1024 * 1024 * 1024))
thresh_crit=$((thresh_crit * 1024 * 1024 * 1024))
;;
"KB")
calc_value=$dirsize
;;
*)
echo "Wrong Metric! Must be KB, MB, GB or TB!"
exit $STATE_UNKNOWN
;;
esac

if [ "$thresh_warn" != "" ]; then
if [ $dirsize -ge $thresh_warn ]; then
result="warning"
exitstatus=$STATE_WARNING
fi
fi
if [ "$thresh_crit" != "" ]; then
if [ $dirsize -ge $thresh_crit ]; then
result="critical"
exitstatus=$STATE_CRITICAL
fi
fi
if [ $perfdata -eq 1 ]; then
result="$result|'size'=${calc_value};${thresh_warn};${thresh_crit}"
fi

echo "$calc_value $metric - $result"
exit $exitstatus
byErick678, March 23, 2014
Is it possible to implement the remote dirsize check?
Thanks shawnbrito,
i have changed the permission settings in the script as you told but it doesn't work. the error is just "Error:" i have tried chmod u+r on the directory (/etc) i need to monitor but the trick failed to work. any idea please?
This is a must have plugin.. Really appreciate it.. Thanks...

In order to read the folder that have root permission, you will need to modify line:46 with sudo as follows....
DU="/usr/bin/sudo /usr/bin/du"

On Fedora based systems, basename command is located in the /bin/ folder.. (Modify line:50)
PROGNAME=`/bin/basename $0`

I also had to visudo, and #comment the Default requiretty... and add the following line to the list of allowed commands...(Fedora Linux)

nagios ALL=(ALL) NOPASSWD: /usr/local/nagios/libexec/
nagios ALL=(ALL) NOPASSWD: /usr/bin/