Linux下进程及端口查询汇总

根据端口查进程

lsof -i:port
netstat -nap | grep port

根据进程号查端口

lsof -i | grep pid
netstat -nap | grep pid

根据进程名查找pid、port

ps -ef | grep tomcat
ps -ef | grep pid

netstat无法显示PID或进程名

$ netstat -nap | grep 8080
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp6       0      0 :::8080                 :::*                    LISTEN      -                   

执行netstat -anop后得到如上结果，有些端口占用没有进程的pid和Program Name，使用root执行即可