check_linux_cpu

#!/bin/bash

Syntaxe()
{
   echo " "
   echo "  Command Syntaxe: check_linux_cpu [-H host] [-c val] [-w val] "
   echo " "
   exit 3;
}

if [[ $# -ne 6 ]]
then
  Syntaxe
fi

valw=0
valc=0
host=""

while [[ $# > 0 ]]
do
   par=$1
   case $par in
     -c) shift
         valc=$1;;
     -w) shift
         valw=$1;;
     -H) shift
         host=$1;;
     -h) shift
         Syntaxe
         exit;;
      *) shift;;
   esac
done

command="vmstat 1 3 | awk '{ print \$13\" \"\$14\" \"\$15\" \"\$16\" \"\$17 }' | tail -1"
output=$(ssh nagios@$host "$command")
if [[ -z $output ]]
then
	echo "SSH Error"
	exit 3
fi

us=$(echo $output | cut -d " " -f1 )
sy=$(echo $output | cut -d " " -f2 )
id=$(echo $output | cut -d " " -f3 )
wa=$(echo $output | cut -d " " -f4 )
pc=$(echo $output | cut -d " " -f5 )

total=$(expr $us + $sy + $wa)

exitCode=0
status="OK"

if (( $total > $valw ))
then
   exitCode=1
   status="WARNING"
fi
if (( $total > $valc ))
then
  exitCode=2
  status="CRITCAL"
fi

echo "CPU $status : Total usage $total% | total=$total%;$valw;$valc user=$us% system=$sy% iowait=$wa% idle=$id%"
exit $exitCode