Linux uses the port number to query the occupied process and know where it is

For example, to query port 2181.

1. The process ID that the query port occupies

NETSTAT-ANP | grep 2181

TCP6       0      :::2181                 :::*                    LISTEN      10997 

2181 as port number

10997 for PID

You can also use:

lsof-i:2181

COMMAND   PID USER   FD   TYPEDEVICE size/OFF  NODE namejava    10997  Jim   25u  IPv6 197822      0t0  TCP *:2181 (LISTEN)

2, according to the PID query process location

10997

Jim109971959 0 December Pts/2 00:00:00/usr/lib/jvm/java-8-oracle/bin/java-dzookeeper.log.dir=.-dzookeeper.root.logger=info,console-cp/home/jim/ opt/zookeeper-3.4.9/bin/. /build/classes:/home/jim/opt/zookeeper-3.4.9/bin/. /build/lib/*.jar:/home/jim/opt/zookeeper-3.4.9/bin/. /lib/slf4j-log4j12-1.6.1.jar:/home/jim/opt/zookeeper-3.4.9/bin/. /lib/slf4j-api-1.6.1.jar:/home/jim/opt/zookeeper-3.4.9/bin/. /lib/netty-3.10.5.final.jar:/home/jim/opt/zookeeper-3.4.9/bin/. /lib/log4j-1.2.16.jar:/home/jim/opt/zookeeper-3.4.9/bin/. /lib/jline-0.9.94.jar:/home/jim/opt/zookeeper-3.4.9/bin/. /zookeeper-3.4.9.jar:/home/jim/opt/zookeeper-3.4.9/bin/. /src/java/lib/*.jar:/home/jim/opt/zookeeper-3.4.9/bin/. /conf:-dcom.sun.management.jmxremote-dcom.sun.management.jmxremote.local.only=false org.apache.zookeeper.server.quorum.quorumpeermain/home/jim/opt/zookeeper-3.4.9/bin/. /conf/zoo.cfg

Reference:

http://blog.csdn.net/rocklee/article/details/50886739

http://blog.csdn.net/zhongweijian/article/details/7942611

Linux uses the port number to query the occupied process and know where it is