diff --git a/bundles/sshmon/files/check_cpu_stats b/bundles/sshmon/files/check_cpu_stats
index 28a6dfe..95be196 100644
--- a/bundles/sshmon/files/check_cpu_stats
+++ b/bundles/sshmon/files/check_cpu_stats
@@ -1,184 +1,59 @@
-#!/bin/bash
-# ========================================================================================
-# CPU Utilization Statistics plugin for Nagios 
-#
-# Written by	: Steve Bosek
-# Patched by  : Bas van der Doorn
-# Release	: 2.2
-# Creation date	: 8 September 2007
-# Revision date : 23 November 2008
-# Package       : DTB Nagios Plugin
-# Description   : Nagios plugin (script) to check cpu utilization statistics.
-#		This script has been designed and written on Unix plateform (Linux, Aix, Solaris), 
-#		requiring iostat as external program. The locations of these can easily 
-#		be changed by editing the variables $IOSTAT at the top of the script. 
-#		The script is used to query 4 of the key cpu statistics (user,system,iowait,idle)
-#		at the same time. Note though that there is only one set of warning 
-#		and critical values for iowait percent.
-#
-# Usage         : ./check_cpu_stats.sh [-w <warn>] [-c <crit] ( [ -i <intervals in second> ] [ -n <report number> ]) 
-# ----------------------------------------------------------------------------------------
-#
-# TODO:  Support for HP-UX
-#		      
-#
-# ========================================================================================
-#
-# HISTORY :
-#     Release	|     Date	|    Authors	| 	Description
-# --------------+---------------+---------------+------------------------------------------
-# 	2.0	|    16.02.08	|  Steve Bosek	| Solaris support and new parameters 
-#               | 		|               | New Parameters : - iostat seconds intervals 
-#               |               |               |         	   - iostat report number
-#  2.1 |  08.06.08 | Steve Bosek | Bug perfdata and convert comma in point for Linux result
-#  2.1.1 | 20.11.08 | Bas van der Doorn | Fixed improperly terminated string
-#  2.1.2 | 23.11.08 | Bas van der Doorn | Fixed linux steal reported as idle, comparisons
-#  2.2 | 23.11.08 | Bas van der Doorn | Capable systems will output nice and steal data
-# -----------------------------------------------------------------------------------------
-#	
-# =========================================================================================
+#!/usr/bin/env python3
 
-# Paths to commands used in this script.  These may have to be modified to match your system setup.
+from re import findall
+from subprocess import check_output
+from sys import exit
 
-IOSTAT=/usr/bin/iostat
+try:
+    top_output = check_output("top -b -n1 -d1 | grep -i '^\%cpu'", shell=True).decode('UTF-8').split(': ', 2)[1].strip()
 
-# Nagios return codes
-STATE_OK=0
-STATE_WARNING=1
-STATE_CRITICAL=2
-STATE_UNKNOWN=3
+    cpu_usage = {}
+    for value, identifier in findall('([0-9\.\,]{3,5}) ([a-z]{2})', top_output):
+        cpu_usage[identifier] = float(value.replace(',', '.'))
 
-# Plugin parameters value if not define
-WARNING_THRESHOLD=${WARNING_THRESHOLD:="30"}
-CRITICAL_THRESHOLD=${CRITICAL_THRESHOLD:="100"}
-INTERVAL_SEC=${INTERVAL_SEC:="1"}
-NUM_REPORT=${NUM_REPORT:="3"}
+    warn = set()
+    crit = set()
 
-# Plugin variable description
-PROGNAME=$(basename $0)
-RELEASE="Revision 2.1.1"
-AUTHOR="(c) 2008 Steve Bosek (steve.bosek@gmail.com)"
+    print(top_output)
 
-if [ ! -x $IOSTAT ]; then
-	echo "UNKNOWN: iostat not found or is not executable by the nagios user."
-	exit $STATE_UNKNOWN
-fi
+    # steal
+    if cpu_usage['st'] > 5:
+        crit.add('CPU steal is {}% (>5%)'.format(cpu_usage['st']))
+    elif cpu_usage['st'] > 2:
+        warn.add('CPU steal is {}% (>2%)'.format(cpu_usage['st']))
 
-# Functions plugin usage
-print_release() {
-    echo "$RELEASE $AUTHOR"
-}
+    # iowait
+    if cpu_usage['wa'] > 60:
+        crit.add('IOwait is {}% (>60%)'.format(cpu_usage['wa']))
+    elif cpu_usage['wa'] > 30:
+        warn.add('IOwait is {}% (>30%)'.format(cpu_usage['wa']))
 
-print_usage() {
-	echo ""
-	echo "$PROGNAME $RELEASE - CPU Utilization check script for Nagios"
-	echo ""
-	echo "Usage: check_cpu_stats.sh -w -c (-i -n)"
-	echo ""
-	echo "	-w  Warning level in % for cpu iowait"
-	echo "	-c  Crical level in % for cpu iowait"
-	echo "  -i  Interval in seconds for iostat (default : 1)"
-	echo "  -n  Number report for iostat (default : 3)"
-	echo "	-h  Show this page"
-	echo ""
-    echo "Usage: $PROGNAME"
-    echo "Usage: $PROGNAME --help"
-    echo ""
-}
-
-print_help() {
-	print_usage
-        echo ""
-        echo "This plugin will check cpu utilization (user,system,iowait,idle in %)"
-        echo ""
-	exit 0
-}
-
-# Parse parameters
-while [ $# -gt 0 ]; do
-    case "$1" in
-        -h | --help)
-            print_help
-            exit $STATE_OK
-            ;;
-        -v | --version)
-                print_release
-                exit $STATE_OK
-                ;;
-        -w | --warning)
-                shift
-                WARNING_THRESHOLD=$1
-                ;;
-        -c | --critical)
-               shift
-                CRITICAL_THRESHOLD=$1
-                ;;
-        -i | --interval)
-               shift
-               INTERVAL_SEC=$1
-                ;;
-        -n | --number)
-               shift
-               NUM_REPORT=$1
-                ;;        
-        *)  echo "Unknown argument: $1"
-            print_usage
-            exit $STATE_UNKNOWN
-            ;;
-        esac
-shift
-done
-
-# CPU Utilization Statistics Unix Plateform ( Linux,AIX,Solaris are supported )
-case `uname` in
-	Linux ) CPU_REPORT=`iostat -c $INTERVAL_SEC $NUM_REPORT | sed -e 's/,/./g' | tr -s ' ' ';' | sed '/^$/d' | tail -1`
-			CPU_REPORT_SECTIONS=`echo ${CPU_REPORT} | grep ';' -o | wc -l`
-			CPU_USER=`echo $CPU_REPORT | cut -d ";" -f 2`
-			CPU_NICE=`echo $CPU_REPORT | cut -d ";" -f 3`
-			CPU_SYSTEM=`echo $CPU_REPORT | cut -d ";" -f 4`
-			CPU_IOWAIT=`echo $CPU_REPORT | cut -d ";" -f 5`
-			CPU_IOWAIT_MAJOR=`echo $CPU_IOWAIT | cut -d "." -f 1`
-		if [ ${CPU_REPORT_SECTIONS} -ge 6 ]; then
-			CPU_STEAL=`echo $CPU_REPORT | cut -d ";" -f 6`
-			CPU_IDLE=`echo $CPU_REPORT | cut -d ";" -f 7`
-			NAGIOS_DATA="user=${CPU_USER}% system=${CPU_SYSTEM}% iowait=${CPU_IOWAIT}% idle=${CPU_IDLE}% nice=${CPU_NICE}% steal=${CPU_STEAL}% | CpuUser=${CPU_USER};CpuSystem=${CPU_SYSTEM};CpuIoWait=${CPU_IOWAIT};CpuIdle=${CPU_IDLE};CpuNice=${CPU_NICE};CpuSteal=${CPU_STEAL};$WARNING_THRESHOLD;$CRITICAL_THRESHOLD"
-		else
-			CPU_IDLE=`echo $CPU_REPORT | cut -d ";" -f 6`
-			NAGIOS_DATA="user=${CPU_USER}% system=${CPU_SYSTEM}% iowait=${CPU_IOWAIT}% idle=${CPU_IDLE}% nice=${CPU_NICE}% | CpuUser=${CPU_USER};CpuSystem=${CPU_SYSTEM};CpuIoWait=${CPU_IOWAIT};CpuIdle=${CPU_IDLE};CpuNice=${CPU_NICE};$WARNING_THRESHOLD;$CRITICAL_THRESHOLD"
-		fi		
-            ;;
- 	AIX ) CPU_REPORT=`iostat -t $INTERVAL_SEC $NUM_REPORT | sed -e 's/,/./g'|tr -s ' ' ';' | tail -1`
-			CPU_USER=`echo $CPU_REPORT | cut -d ";" -f 4`
-			CPU_SYSTEM=`echo $CPU_REPORT | cut -d ";" -f 5`
-			CPU_IOWAIT=`echo $CPU_REPORT | cut -d ";" -f 7`
-			CPU_IOWAIT_MAJOR=`echo $CPU_IOWAIT | cut -d "." -f 1`
-			CPU_IDLE=`echo $CPU_REPORT | cut -d ";" -f 6`
-			NAGIOS_DATA="user=${CPU_USER}% system=${CPU_SYSTEM}% iowait=${CPU_IOWAIT}% idle=${CPU_IDLE}% | CpuUser=${CPU_USER};CpuSystem=${CPU_SYSTEM};CpuIoWait=${CPU_IOWAIT};CpuIdle=${CPU_IDLE};$WARNING_THRESHOLD;$CRITICAL_THRESHOLD"
-            ;;
-  	SunOS ) CPU_REPORT=`iostat -c $INTERVAL_SEC $NUM_REPORT | tail -1`
-      			CPU_USER=`echo $CPU_REPORT | awk '{ print $1 }'`
-			CPU_SYSTEM=`echo $CPU_REPORT | awk '{ print $2 }'`
-			CPU_IOWAIT=`echo $CPU_REPORT | awk '{ print $3 }'`
-			CPU_IOWAIT_MAJOR=`echo $CPU_IOWAIT | cut -d "." -f 1`
-			CPU_IDLE=`echo $CPU_REPORT | awk '{ print $4 }'`
-			NAGIOS_DATA="user=${CPU_USER}% system=${CPU_SYSTEM}% iowait=${CPU_IOWAIT}% idle=${CPU_IDLE}% | CpuUser=${CPU_USER};CpuSystem=${CPU_SYSTEM};CpuIoWait=${CPU_IOWAIT};CpuIdle=${CPU_IDLE};$WARNING_THRESHOLD;$CRITICAL_THRESHOLD"
-            ;;
-	*) 		echo "UNKNOWN: `uname` not yet supported by this plugin. Coming soon !"
-			exit $STATE_UNKNOWN 
-	    ;;
-	esac
-
-# Return
-	if [ ${CPU_IOWAIT_MAJOR} -ge $WARNING_THRESHOLD ] && [ ${CPU_IOWAIT_MAJOR} -lt $CRITICAL_THRESHOLD ]; then
-		echo "CPU STATISTICS WARNING : ${NAGIOS_DATA}"
-		exit $STATE_WARNING
-	elif [ ${CPU_IOWAIT_MAJOR} -ge $CRITICAL_THRESHOLD ]; then
-		echo "CPU STATISTICS CRITICAL : ${NAGIOS_DATA}"
-		exit $STATE_CRITICAL
-	else
-		echo "CPU STATISTICS OK : ${NAGIOS_DATA}"
-		exit $STATE_OK
-	fi
+    total_usage = cpu_usage['us'] + cpu_usage['sy']
+    if total_usage > 90:
+        crit.add('Total CPU usage is {:.1f}% ({}% user, {}% system, >90%)'.format(
+            total_usage,
+            cpu_usage['us'],
+            cpu_usage['sy'],
+        ))
+    elif total_usage > 80:
+        warn.add('Total CPU usage is {:.1f}% ({}% user, {}% system > 80%)'.format(
+            total_usage,
+            cpu_usage['us'],
+            cpu_usage['sy'],
+        ))
 
+    for line in sorted(crit):
+        print(line)
 
+    for line in sorted(warn):
+        print(line)
 
+    if crit:
+        exit(2)
+    elif warn:
+        exit(1)
+    else:
+        exit(0)
+except Exception as e:
+    print(repr(e))
+    exit(3)