#!/bin/bash

_err=0

function _wc(){
	_port=$1
	_port_v=$2
	_used=`netstat -tunlp | egrep -v '${_port_v}' | egrep ${_port} | wc -l`
	if [ ${_used} -gt 0 ]; then
	    echo "Port ${_port} is used."
	fi
	_err=$[${_err}+${_used}]
}

_wc 5672 [1-6]+5672

_wc 15672 -1

_wc 6379 [1-6]+6379

_wc 3306 [1-6]+3306

_wc 22122 -1

_wc 6666 [1-6]+6666

_wc 23000 -1

_wc 8888 [1-6]+8888

_wc 8500 [1-6]+8500

if [ $_err -gt 0 ]; then
    exit 1
fi