Linux查看指定端口占用情况

命令 lsof -i :端口号
例：查看80端口：

root@VM-16-7-ubuntu:~# lsof -i :80
COMMAND    PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
openresty 1766 root    9u  IPv4  24971      0t0  TCP *:http (LISTEN)
openresty 1766 root   11u  IPv6  24973      0t0  TCP *:http (LISTEN)
openresty 1875 root    9u  IPv4  24971      0t0  TCP *:http (LISTEN)
openresty 1875 root   11u  IPv6  24973      0t0  TCP *:http (LISTEN)
openresty 1876 root    9u  IPv4  24971      0t0  TCP *:http (LISTEN)
openresty 1876 root   11u  IPv6  24973      0t0  TCP *:http (LISTEN)