linux根据进程查端口，根据端口查进程

[root@test_environment src]# netstat -tnllup   能显示对应端口和进程 
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/systemd
tcp 0 0 0.0.0.0:6000 0.0.0.0:* LISTEN 7750/redis-server *
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 7721/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 8111/master
tcp 0 0 0.0.0.0:10050 0.0.0.0:* LISTEN 19140/zabbix_agentd
tcp6 0 0 :::5672 :::* LISTEN 8016/java
tcp6 0 0 :::28009 :::* LISTEN 14196/java
tcp6 0 0 :::61613 :::* LISTEN 8016/java
tcp6 0 0 :::61614 :::* LISTEN 8016/java
tcp6 0 0 :::111 :::* LISTEN 1/systemd
tcp6 0 0 :::80 :::* LISTEN 124184/dotnet

根据进程pid查端口：netstat -nap | grep pid

根据端口port查进程：netstat -nap | grep port