linux下查看端口占用情況:
1.
查看哪個進程占用了819端口:
case9-sghfofo:/usr/local/cnbj/tomcat-bj/bin # lsof -i:859
運行後的結果:
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
java 24907 root 31u IPv4 248905027 TCP *:859 (LISTEN)
由以上我們知道了859端口被進程號為24907的進程占用了, 是個java進程。
2.
查看進程號為24907的進程在哪裡:
case9-sghfofo:/usr/local/cnbj/tomcat-bj/bin # ps -ef|grep 24907
root 13421 29276 0 20:08 pts/2 00:00:00 grep 24907
root 24907 1 0 11:43 pts/4 00:03:53 /usr/java/jdk1.6.0_13/bin/java -server -XX:PermSize=256M -XX:MaxPermSize=512m -Xbootclasspath/p:java-net-Socket.jar -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=/usr/local/cnsh/tomcat-sh/conf/logging.properties -Djava.endorsed.dirs=/usr/local/cnsh/tomcat-sh/bin/endorsed -classpath :/usr/local/cnsh/tomcat-sh/bin/bootstrap.jar -Dcatalina.base=/usr/local/cnsh/tomcat-sh/bin -Dcatalina.home=/usr/local/cnsh/tomcat-sh/bin -Djava.io.tmpdir=/usr/local/cnsh/tomcat-sh/bin/temp -Xmx512m -Xms256m org.apache.catalina.startup.Bootstrap start
由以上我們知道是目錄為/usr/local/cnsh/tomcat-sh/bin/的tomcat占用了。