#!/usr/bin/env bash # $Id$ # check_sensors - get temperature, fan speed, and voltages from lm-sensors # by Matthew Wall # based on check_sensors by Mikael Lammentausta # # Copyright (c) 2010 Matthew Wall, all rights reserved # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # # Revision History # 0.3 - testing on openbsd # 0.2 - make return codes consistent # 0.1 - fix parsing of temperatures when output contains degree symbol # - consolidate code # - fix parsing of motherboard temperature # - handle multiple cpus # # # Prerequisites # # This plugin depends on lm-sensors. Ensure that lm-sensors is installed. # apt-get install lm-sensors # Ensure that sensors are configured. # sensors-detect # Beware that detecting sensors can hang your system! # # # How to use this plugin # # In a single query you can retrieve temperature, fan speed, or voltage # information, but not all three. The warning and critical levels apply # only to temperature and fan speeds. # # # Examples # # check_sensors # OK - sensors ok # # check_sensors -T temperature # OK - MOTHERBOARD = 28.0C, CPU0 = 42.0C, CPU1 = 42.5C | MOTHERBOARD=28.0;; CPU0=42.0;; CPU1=42.5;; # # check_sensors -T temperature -w 45 -c 50 # OK - MOTHERBOARD = 28.0C, CPU0 = 42.5C, CPU1 = 42.5C | MOTHERBOARD=28.0;45;50 CPU0=42.5;45;50 CPU1=42.5;45;50 # # check_sensors -T fan # OK - fan1 = 4787 RPM, fan2 = 4530 RPM, fan3 = 3426 RPM | fan1=4787;; fan2=4530;; fan3=3426;; # # check_sensors -T fan -w 4000 -c 1000 # WARNING - fan1 = 4720 RPM, fan2 = 4560 RPM, fan3 = 3391 RPM | fan1=4720;4000;1000 fan2=4560;4000;1000 fan3=3391;4000;1000 # # check_sensors -T voltages # OK - VCore1 = +1.73V,VCore2 = +1.73V,+3.3V = +3.30V,+5V = +4.95V,+12V = +11.98V,-12V = -3.56V,-5V = -5.39V,cpu0_vid = +1.750V, PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin PROGNAME=`basename $0` PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'` REVISION='0.3' # load the nagios utils utilsfn= for d in $PROGPATH /usr/lib/nagios/plugins /usr/lib64/nagios/plugins /usr/local/nagios/libexec /opt/nagios-plugins/libexec . ; do if [ -f $d/utils.sh ]; then utilsfn=$d/utils.sh; fi done if [ "$utilsfn" = "" ]; then echo "UNKNOWN - cannot find utils.sh (part of nagios plugins)"; exit 3; fi . $utilsfn; print_usage() { echo "Usage: $PROGNAME [--version] [--help] [--verbose]" echo " [-T (temperature | voltages | fan)]" echo " [-w value] [-c value]" echo echo -e "\t --help | -h print help" echo -e "\t --version | -V print version" echo -e "\t --verbose | -v be verbose" echo -e "\t --type | -T [type] " echo -e "\t temperature check and print temperature data" echo -e "\t voltages check and print voltage data" echo -e "\t fan check and print fan data" echo -e "\t -w [value] specify warning value" echo -e "\t -c [value] specify critical value" echo echo "If no options are given, only status will be printed. Only one" echo "sensor type can be specified at a time. Values for warning and" echo "critical have the same units as the sensor type for which they" echo "are specified." } print_help() { print_revision $PROGNAME $REVISION echo echo "This plugin checks hardware status using lm-sensors." echo print_usage echo support } # set defaults check_temp=0 check_voltages=0 check_fan=0 isverbose=0 maxcpu=16 # parse cmd arguments if [ "$#" -gt 0 ]; then while [ "$#" -gt 0 ]; do case "$1" in '--help'|'-h') print_help exit $STATE_OK ;; '--version'|'-V') print_revision $PROGNAME $REVISION exit $STATE_OK ;; '--verbose'|'-v') isverbose=1 shift 1 ;; '-T'|'--type') case $2 in 'temp'|'temperature') check_temp=1 ;; 'voltages') check_voltages=1 ;; 'fan') check_fan=1 ;; *) echo "UNKNOWN - unrecognized type $2" exit $STATE_UNKNOWN ;; esac shift 2 ;; '-c') critical="$2" shift 2 ;; '-w') warning="$2" shift 2 ;; *) echo "UNKNOWN - unrecognized option $1" print_usage exit $STATE_UNKNOWN ;; esac done fi # test dependencies if [ ! "$(type -p sensors)" ]; then echo "UNKNOWN - sensors command not found" exit $STATE_UNKNOWN fi # get the data sensordata=$(sensors 2>&1) status=$? # check the status code if [ ${status} -ne 0 ]; then echo "UNKNOWN - sensors returned $status" exit $STATE_UNKNOWN fi # all is ok if [ $isverbose -eq 1 ]; then echo -e "${sensordata}" fi # check temperatures check_temp() { cpu_temp="$(grep -i 'cpu temp' <<< "${sensordata}" | \ grep -Eo '[0-9\.]+[[:punct:]]?[ ]?[CF]+' | head -n 1 | \ sed 's/.\([CF]\)/\1/' )" for cpu in $(seq 0 1 $maxcpu); do cpun_temp[${#cpun_temp[@]}]="$(grep -i "cpu$cpu temp" <<< "${sensordata}" | \ grep -Eo '[0-9\.]+[[:punct:]]?[ ]?[CF]+' | head -n 1 | \ sed 's/.\([CF]\)/\1/' )" done mobo_temp="$(grep -i 'M/B temp' <<< "${sensordata}" | \ grep -Eo '[0-9\.]*[[:punct:]]?[ ]?[CF]+' | head -n 1 | \ sed 's/.\([CF]\)/\1/' )" } # check fan speed check_fan() { fans="$(grep -i 'fan' <<< "${sensordata}" | cut -d'(' -f 1 )" } # check voltages check_voltages() { sensors | grep -E '[0-9]{2}\ V' | cut -d'(' -f 1 | \ sed 's/\ *//g ; s/:/\ =\ /' | tr '\n' ',' } if [ $check_temp -eq 1 ]; then check_temp cpu_status=$STATE_OK t=$(grep -Eo '[0-9.]+' <<< ${cpu_temp}) if [ "$t" != "" ]; then temps="$t "; fi t=$(grep -Eo '[0-9.]+' <<< ${mobo_temp}) if [ "$t" != "" ]; then temps="$t "; fi for cpu in $(seq 0 1 $maxcpu); do t=$(grep -Eo '[0-9.]+' <<< ${cpun_temp[$cpu]}) if [ "$t" != "" ]; then temps="$t "; fi done for t in $temps; do [ "$critical" ] && \ if [ $(echo "$t > $critical" | bc) -eq 1 ]; then cpu_status=$STATE_CRITICAL fi [ "$warning" -a $cpu_status -eq 0 ] && \ if [ $(echo "$t > $warning" | bc) -eq 1 ]; then cpu_status=$STATE_WARNING fi done if [ "${mobo_temp}" != "" ]; then if [ "$MSG" != "" ]; then MSG="$MSG, "; fi MSG="${MSG}MOTHERBOARD = ${mobo_temp}" if [ "$PARAM" != "" ]; then PARAM="$PARAM "; fi t=$(grep -Eo '[0-9.]+' <<< ${mobo_temp}) PARAM="${PARAM}MOTHERBOARD=$t;$warning;$critical" fi if [ "${cpu_temp}" != "" ]; then if [ "$MSG" != "" ]; then MSG="$MSG, "; fi MSG="${MSG}CPU = ${cpu_temp}" if [ "$PARAM" != "" ]; then PARAM="$PARAM "; fi t=$(grep -Eo '[0-9.]+' <<< ${cpu_temp}) PARAM="${PARAM}CPU=$t;$warning;$critical" fi for cpu in $(seq 0 1 $maxcpu); do if [ "${cpun_temp[$cpu]}" != "" ]; then if [ "$MSG" != "" ]; then MSG="$MSG, "; fi MSG="${MSG}CPU$cpu = ${cpun_temp[$cpu]}" if [ "$PARAM" != "" ]; then PARAM="$PARAM "; fi t=$(grep -Eo '[0-9.]+' <<< ${cpun_temp[$cpu]}) PARAM="${PARAM}CPU$cpu=$t;$warning;$critical" fi done CODE=$cpu_status # fan elif [ $check_fan -eq 1 ]; then check_fan fan_status=$STATE_OK worst_state=$STATE_OK first=1 IFS_bak="$IFS" IFS=$'\n' for fan in $fans; do fan_status=0 fan_name="$(awk -F':' {'print $1'} <<< $fan )" speed="$(awk /[0-9]+/{'print $2'} <<< $fan)" [ "$critical" ] && \ if [ $speed -le $critical ]; then fan_status=$STATE_CRITICAL fi [ "$warning" -a $fan_status -eq 0 ] && \ if [ $speed -le $warning ]; then fan_status=$STATE_WARNING fi if [ $first -eq 1 ]; then first=0 else MSG="$MSG, " PARAM="$PARAM " fi MSG="${MSG}${fan_name} = ${speed} RPM" PARAM="${PARAM}${fan_name}=${speed};$warning;$critical" [ $fan_status -gt $worst_state ] && worst_state=$fan_status done CODE=$worst_state # voltages elif [ $check_voltages -eq 1 ]; then # no critical/warning for voltages! MSG="$(check_voltages)" CODE=$STATE_OK # default operation else if echo ${sensordata} | egrep ALARM > /dev/null; then MSG="alarm detected!" CODE=$STATE_CRITICAL else MSG="sensors ok" CODE=$STATE_OK fi fi case $CODE in 0) STATUS=OK ;; 1) STATUS=WARNING ;; 2) STATUS=CRITICAL ;; 3) STATUS=UNKNOWN ;; esac echo -n "$STATUS - $MSG" if [ "$PARAM" != "" ]; then echo -n " | $PARAM"; fi echo exit $CODE