CheckDirSize

There is a bug in the script. the command line option -perfdata should be --perfdata in the code. --perfdata is not recognized.

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.

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

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/