check_linux_process

#!/bin/bash

Syntax()
{
   echo " "
   echo "  Command Syntax: check_linux_process [-H host] [-p process_name]"
   echo " "
   exit 3;
}

if [[ $# -ne 4 ]]
then
  Syntax
fi

process_name=""
host=""

while getopts ":H:p:" opt
do
  case ${opt} in
    H )
      host=${OPTARG}
      ;;
    p )
      process_name=${OPTARG}
      ;;
    * )
      Syntax
      exit 2
      ;;
  esac
done
shift $((OPTIND-1))

command="ps -ef | grep $process_name | grep -vE "grep|$0" | wc -l"
output=$(ssh nagios@$host "$command")
if [[ -z $output ]]
then
	echo "SSH Error"
	exit 3
fi

if [ "$output" -gt "0" ]
then
  echo "OK: Process running: $process_name | Staus=1"
  exit 0
else
  echo "CRITICAL: Process not running: $process_name | Status=0"
  exit 2
fi