监控nginx连接数

[4ajr@web1 scripts]$ vim conn_now 

#!/bin/bash

conn=`netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a,S[a]}' | grep "ESTABLISHED" | awk '{print $2}'`

if [ $conn -le 1000 ]

  then

   echo 1

  else

   echo 0

fi

[4ajr@web1 etc]$ vim zabbix_agentd.conf

UserParameter=conn_nginx,bash /soft/zabbix_agent/scripts/conn_now