1、先查看进程pid
ps -ef | grep 进程名
2、通过pid查看占用端口
netstat -nap | grep 进程pid
例:通过nginx进程查看对应的端口号
#查看nginx进程pid: 命令: ps -ef | grep nginx 结果: root 9836 1 0 Jul11 ? 00:00:00 nginx: master process /usr/local/nginx/sbin/nginx nobody 9841 9836 0 Jul11 ? 00:00:09 nginx: worker process #通过nginx进程pid查看占用端口(进程pid为9836) 命令: netstat -nap | grep 9836 结果: tcp 0 0 0.0.0.0:8081 0.0.0.0:* LISTEN 9836/nginx tcp 0 0 0.0.0.0:81 0.0.0.0:* LISTEN 9836/nginx tcp 0 0 0.0.0.0:8082 0.0.0.0:* LISTEN 9836/nginx tcp 0 0 0.0.0.0:8083 0.0.0.0:* LISTEN 9836/nginx