shell
#!/bin/bash
PORT=0
while [ true ];do
read -p "please enter the port that you want to minitor:" port
if [ $port -gt 65536 ] || [ $port -lt 1 ];then
echo 'the port you enter is not correctly'
else
PORT=$port
break
fi
done
while [ true ]; do
if [ `netstat -anp 2> /dev/null | grep ${PORT} | wc -l` -gt 0 ] ;then
echo 'service is online'
else
echo 'service is offline'
cd /home/eko/share/live_admin/script
php ./ws.php &
fi
sleep 3
done
利用Swoole定时器实现
class Server {
const PORT = 8811;
public function port() {
$shell = "netstat -anp 2>/dev/null | grep ". self::PORT . " | grep LISTEN | wc -l";
$result = shell_exec($shell);
if($result != 1) {
// 发送报警服务 邮件 短信
/// todo
echo date("Ymd H:i:s")."error".PHP_EOL;
} else {
echo date("Ymd H:i:s")."succss".PHP_EOL;
}
}
}
// nohup
swoole_timer_tick(2000, function($timer_id) {
(new Server())->port();
echo "time-start".PHP_EOL;
});
