View port usage in Linux

Run the following command to check port usage in Linux: lsof-I: <port number> For example: www.2cto.com Linux code [root @ SonarServer1 user0] # lsof-I: 80 command pid user fd type device size/off node name java 19408 root 144u IPv6 183572842 0t0 TCP *: http (LISTEN) www.2cto.com you can also use the following COMMAND: netstat-apn | grep <port number> For example: Linux code [root @ SonarServer1 user0] # netstat-apn | grep 80 tcp 0 0 ::: 80 ::: * After finding the process number in LISTEN 19408/java, run the following command to View Details: ps-aux | grep <process number> Lin Ux code [root @ SonarServer1 user0] # ps-aux | grep 19408 Warning: bad syntax, perhaps a bogu '-'? See/usr/share/doc/procps-3.2.8/FAQ root 19408 3.8 2.2 2520992 357368? Sl java-Djava. awt. headless = true-XX: MaxPermSize = 128 m-Xms256m-Xmx512m-Djava. library. path =. /lib-classpath .. /.. /lib/servlet-api-2.5-20081211.jar :.. /.. /lib/jetty-util-6.1.25.jar :.. /.. /lib/activation-1.1.jar :.. /.. /lib/geronimo-spec-jta-1.0-M1.jar :.. /.. /lib/wrapper-3.2.3.jar :.. /.. /lib/commons-io-2.0.1.jar :.. /.. /lib/jetty-6.1.25.jar :.. /.. /lib/sonar-application-3.2.jar :.. /.. /lib/jetty-naming-6.1.25.jar :.. /.. /lib/jetty-plus-6.1.25.jar :.. /.. /:.. /.. /extensions/jdbc-driver/mysql/mysql-connector-java-5.1.18.jar :.. /.. /extensions/jdbc-driver/postgresql/postgresql-9.0-801.jdbc3.jar :.. /.. /extensions/jdbc-driver/mssql/jtds-1.2.4.jar-Dwrapper. key = n24m_l80HqD33MJi-Dwrapper. port = 32000-Dwrapper. jvm. port. min = 31000-Dwrapper. jvm. port. max = 31999-Dwrapper. pid = 19406-Dwrapper. version = 3.2.3-Dwrapper. native_library = wrapper-Dwrapper. service = TRUE-Dwrapper. cpu. timeout = 10-Dwrapper. jvmid = 1 org. tanukisoftware. wrapper. wrapperSimpleApp org. sonar. application. startServer root 19460 0.0 0.0 105476 948 pts/5 S + grep 19408