windows shell
查找端口进程ID(最后一列是 PID)
netstat -aon|findstr "8080"
kill 进程
taskkill /f /pid 6764
ping IP
ping IP `ping 127.0.0.1`
ping host `ping www.baidu.com`
ping 端口
telnet host port `telnet baidu.com 80`
telnet IP port `telnet 127.0.0.1 8080`
quit 退出 telnet
切换目录
cd /d d:
cd 目录路径