서버 포트 체크

#!/bin/bash apache=`nmap [IP] -p 80 |grep open | wc -l` mysql=`nmap [IP] -p 3306 |grep open | wc -l` ssh=`nmap [IP] -p 22 |grep open | wc -l` ftp=`nmap [IP] -p 21 |grep open | wc -l` if [ "$apache" -eq "0" ]; then    curl "https://api.telegram.org/[텔레그램 봇 ID]&text=   APACHE DOWN!!!!!!!!!!!!!" fi if [ "$mysql" -eq "0" ]; then    curl "https://api.telegram.org/[텔레그램 봇 ID]&text=   MYSQL DOWN!!!!!!!!!!!!!" fi if [ "$ssh" -eq "0" ]; then    curl "https://api.telegram.org/[텔레그램 봇 ID]&text=   SSH DOWN!!!!!!!!!!!!!" fi if [ "$ftp" -eq "0" ]; then    curl "https://api.telegram.org/[텔레그램 봇 ID]&text=   FTP DOWN!!!!!!!!!!!!!" fi