ubuntu@ip-:~$
ubuntu@ip-:~$ sudo ls /var/lib/tomcat7/webapps/openmrs/WEB-INF/classes/
liquibase-demo-data.xml  log4j.xml  velocity.properties
ubuntu@ip-:~$ sudo vi /var/lib/tomcat7/webapps/openmrs/WEB-INF/classes/log4j.properties

ubuntu@ip-:~$ sudo service tomcat7 restart
 * Stopping Tomcat servlet engine tomcat7                                                                                                                        [ OK ]
 * Starting Tomcat servlet engine tomcat7                                                                                                                        [ OK ]
ubuntu@ip-:~$ sudo tail -f /var/log/tomcat7/catalina.out
Oct 30, 2019 6:28:26 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /var/lib/tomcat7/webapps/ROOT
Oct 30, 2019 6:28:27 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Oct 30, 2019 6:28:27 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 14099 ms
Oct 30, 2019 6:28:46 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
Oct 30, 2019 6:28:46 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/openmrs] startup failed due to previous errors

Oct 30, 2019 6:30:45 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
Oct 30, 2019 6:30:45 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/openmrs] startup failed due to previous errors
Oct 30, 2019 6:31:08 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
Oct 30, 2019 6:31:08 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/openmrs] startup failed due to previous errors