timeout可以实现当一个命令在规定时间内不返回就强制返回的功能 + 杀毒安装ClamAV nmap 速度 比Telnet 快
[root@xiaowei ~]# cat telnetport.sh #!/bin/bash Port=25223 timeout 2 ssh root@127.0.0.1 "telnet 61.146.164.67 $Port " > /tmp/telnet$Port.txt timeout 2 ssh root@127.0.0.1 "telnet 61.146.164.67 $Port " >> /tmp/telnet$Port.txt timeout 2 ssh root@127.0.0.1 "telnet 61.146.164.67 $Port " >> /tmp/telnet$Port.txt result=`grep -c 'Escape' /tmp/telnet$Port.txt` if [[ $result != 3 ]];then echo "problem" curl -d "token=21bd1fb7f4fe5bbe86b5a03a9874c9061d144&room_name=22d13a924daf805b1&chat_im_users=&chat_content=from XIAOWEI test for alert" http://172.16.10.7:45101/outer/common/chat/room/sendmessage fi
参考:Telnet https://blog.csdn.net/weixin_39845407/article/details/81486041
Linux杀毒 https://blog.csdn.net/weixin_39845407/article/details/81780125
用一个例子来演示会更加清晰