1、首先根據名稱用ps命令查看進程ID：
ps -ef | grep zookeeper
jim 10997 1959 0 12月14 pts/2 00:00:01 /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
10997為進程ID
后面是啟動路徑和對應的進程名
1.1、對於在Java虛擬機中運行的進程，比如tomcat的守護進程，可以直接用jsp命令查看：
jps -l | grep zookeeper
10997 org.apache.zookeeper.server.quorum.QuorumPeerMain
已經知道進程的確切名稱，可以用pidof查看：
pidof Name
不過這個一般少用，因為真的很難查
2、查到進程ID之后，使用netstat命令查看其占用的端口：
netstat -anp | grep 10997
tcp6 0 0 :::43125 :::* LISTEN 10997/java tcp6 0 0 :::2181 :::* LISTEN 10997/java
紅色的為占用的端口，LISTEN為占用的類型，綠色粗體為進程ID
參考：