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<code bash> #!/bin/sh ############################################### # # Nagios script to check network I/O status # # Copyright 2007, 2008 Ian Yates # # See usage for command line switches # # NOTE: Because of the method of gathering information, bytes/s values are calculated here, so no wanring/critical values can be set to trigger. # Consequently, this check plugin always returns OK. # This plugin is a means of returning stats to nagios for graphing (recommend DERIVE graph in RRD) # # Created: 2007-09-06 (i.yates@uea.ac.uk) # Updated: 2007-09-06 (i.yates@uea.ac.uk) # Updated: 2008-11-27 (i.yates@uea.ac.uk) - Added GPLv3 licence # Updated: 2011-05-22 (b.brunner@it-transforms.ch) Changed paths for debian # # 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 3 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, see <http://www.gnu.org/licenses/>. # ############################################### . /usr/lib/nagios/plugins/utils.sh

#. /usr/local/nagios/libexec/utils.sh

VERSION=“1.1”

IFCONFIG=/sbin/ifconfig GREP=/bin/grep CUT=/usr/bin/cut

FLAG_VERBOSE=FALSE INTERFACE=“” LEVEL_WARN=“0” LEVEL_CRIT=“0” RESULT=“” EXIT_STATUS=$STATE_OK

############################################### # ## FUNCTIONS #

## Print usage usage() {

      echo " check_netio $VERSION - Nagios network I/O check script"
      echo ""
      echo " Usage: check_netio {-i} [ -v ] [ -h ]"
      echo ""
      echo "           -i  Interface to check (e.g. eth0)"
      echo "           -v  Verbose output (ignored for now)"
      echo "           -h  Show this page"
      echo ""

}

## Process command line options doopts() {

      if ( `test 0 -lt $#` )
      then
              while getopts i:vh myarg "$@"
              do
                      case $myarg in
                              h|\?)
                                      usage
                                      exit;;
                              i)
                                      INTERFACE=$OPTARG;;
                              v)
                                      FLAG_VERBOSE=TRUE;;
                              *)      # Default
                                      usage
                                      exit;;
                      esac
              done
      else
              usage
              exit
      fi

}

# Write output and return result theend() {

      echo $RESULT
      exit $EXIT_STATUS

}

# ## END FUNCTIONS #

############################################# # ## MAIN #

# Handle command line options doopts $@

# Do the do

BYTES_RX=`$IFCONFIG $INTERFACE | $GREP 'bytes' | $CUT -d“:” -f2 | $CUT -d“ ” -f1` BYTES_TX=`$IFCONFIG $INTERFACE | $GREP 'bytes' | $CUT -d“:” -f3 | $CUT -d“ ” -f1`

RESULT=“NETIO OK - $INTERFACE: RX=$BYTES_RX, TX=$BYTES_TX”

# Quit and return information and exit status theend

</bash>

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