Dit is de inhoud van de Check_temp.sh:
#!/bin/bash
################################################################################
# #
# Copyright (C) 2011 Jack-Benny Persson <jake@cyberinfo.se> #
# #
# 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. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program; if not, write to the Free Software #
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA #
# #
################################################################################
###############################################################################
# #
# Nagios plugin to monitor CPU and M/B temperature with sensors. #
# Written in Bash (and uses sed & awk). #
# Latest version of check_temp can be found at the below URL: #
# https://github.com/jackbenny/check_temp #
# #
# If you are having problems getting it to work, check the instructions in #
# the README first. It walks you though install lm-sensors and getting it to #
# display sensor data. #
# #
###############################################################################
VERSION="Version 0.8"
AUTHOR="(c) 2011 Jack-Benny Persson (jack-benny@cyberinfo.se)"
# Sensor program
SENSORPROG=/usr/bin/sensors
# Exit codes
STATE_OK=0
STATE_WARNING=1
STATE_CRITICAL=2
STATE_UNKNOWN=3
shopt -s extglob
#### Functions ####
# Print version information
print_version()
{
printf "\n\n$0 - $VERSION\n"
}
#Print help information
print_help()
{
print_version
printf "$AUTHOR\n"
printf "Monitor temperature with the use of sensors\n"
/bin/cat <<EOT
Options:
-h
Print detailed help screen
-V
Print version information
-v
Verbose output
--sensor WORD
Set what to monitor, for example CPU or MB (or M/B). Check sensors for the
correct word. Default is CPU.
-w INTEGER
Exit with WARNING status if above INTEGER degres
-c INTEGER
Exit with CRITICAL status if above INTEGER degres
EOT
}
###### MAIN ########
# Warning threshold
thresh_warn=
# Critical threshold
thresh_crit=
# Hardware to monitor
sensor=CPU
# See if we have sensors program installed and can execute it
if [[ ! -x "$SENSORPROG" ]]; then
printf "\nIt appears you don't have sensors installed in $SENSORPROG\n"
exit $STATE_UNKOWN
fi
# Parse command line options
while [[ -n "$1" ]]; do
case "$1" in
-h | --help)
print_help
exit $STATE_OK
;;
-V | --version)
print_version
exit $STATE_OK
;;
-v | --verbose)
: $(( verbosity++ ))
shift
;;
-w | --warning)
if [[ -z "$2" ]]; then
# Threshold not provided
printf "\nOption $1 requires an argument"
print_help
exit $STATE_UNKNOWN
elif [[ "$2" = +([0-9]) ]]; then
# Threshold is an integer
thresh=$2
else
# Threshold is not an integer
printf "\nThreshold must be an integer"
print_help
exit $STATE_UNKNOWN
fi
thresh_warn=$thresh
shift 2
;;
-c | --critical)
if [[ -z "$2" ]]; then
# Threshold not provided
printf "\nOption '$1' requires an argument"
print_help
exit $STATE_UNKNOWN
elif [[ "$2" = +([0-9]) ]]; then
# Threshold is an integer
thresh=$2
else
# Threshold is not an integer
printf "\nThreshold must be an integer"
print_help
exit $STATE_UNKNOWN
fi
thresh_crit=$thresh
shift 2
;;
-\?)
print_help
exit $STATE_OK
;;
--sensor)
if [[ -z "$2" ]]; then
printf "\nOption $1 requires an argument"
print_help
exit $STATE_UNKNOWN
fi
sensor=$2
shift 2
;;
*)
printf "\nInvalid option '$1'"
print_help
exit $STATE_UNKNOWN
;;
esac
done
# Check if a sensor were specified
if [[ -z "$sensor" ]]; then
# No sensor to monitor were specified
printf "\nNo sensor specified"
print_help
exit $STATE_UNKNOWN
fi
#Get the temperature
TEMP=`${SENSORPROG} | grep "$sensor" | cut -d+ -f2 | cut -c1-2 | head -n1`
#Old way - Get the temperature
#TEMP=`${SENSORPROG} | grep "$sensor" | awk '{print $3}' | cut -c2-3 | head -n1`
# Check if the thresholds have been set correctly
if [[ -z "$thresh_warn" || -z "$thresh_crit" ]]; then
# One or both thresholds were not specified
printf "\nThreshold not set"
print_help
exit $STATE_UNKNOWN
elif [[ "$thresh_crit" -lt "$thresh_warn" ]]; then
# The warning threshold must be lower than the critical threshold
printf "\nWarning temperature should be lower than critical"
print_help
exit $STATE_UNKNOWN
fi
# Verbose output
if [[ "$verbosity" -ge 1 ]]; then
/bin/cat <<__EOT
Debugging information:
Warning threshold: $thresh_warn
Critical threshold: $thresh_crit
Verbosity level: $verbosity
Current $sensor temperature: $TEMP
__EOT
printf "\n Temperature lines directly from sensors:\n"
${SENSORPROG}
printf "\n\n"
fi
# Get performance data for Nagios "Performance Data" field
PERFDATA=`${SENSORPROG} | grep "$sensor" | head -n1`
# And finally check the temperature against our thresholds
if [[ "$TEMP" != +([0-9]) ]]; then
# Temperature not found for that sensor
printf "No data found for that sensor ($sensor)\n"
exit $STATE_UNKNOWN
elif [[ "$TEMP" -gt "$thresh_crit" ]]; then
# Temperature is above critical threshold
echo "$sensor CRITICAL - Temperature is $TEMP | $PERFDATA"
exit $STATE_CRITICAL
elif [[ "$TEMP" -gt "$thresh_warn" ]]; then
# Temperature is above warning threshold
echo "$sensor WARNING - Temperature is $TEMP | $PERFDATA"
exit $STATE_WARNING
else
# Temperature is ok
echo "$sensor OK - Temperature is $TEMP | $PERFDATA"
exit $STATE_OK
fi
exit 3
