$ ./startup.sh
Using CATALINA_BASE: /Users/prabu-pt1927/Downloads/apache-tomcat-9.0.4
Using CATALINA_HOME: /Users/prabu-pt1927/Downloads/apache-tomcat-9.0.4
Using CATALINA_TMPDIR: /Users/prabu-pt1927/Downloads/apache-tomcat-9.0.4/temp
Using JRE_HOME: /Library/Java/JavaVirtualMachines/jdk1.8.0_77.jdk/Contents/Home
Using CLASSPATH: /Users/prabu-pt1927/Downloads/apache-tomcat-9.0.4/bin/bootstrap.jar:/Users/prabu-pt1927/Downloads/apache-tomcat-9.0.4/bin/tomcat-juli.jar
Tomcat started.

$ ./shutdown.sh
Using CATALINA_BASE: /Users/prabu-pt1927/Downloads/apache-tomcat-9.0.4
Using CATALINA_HOME: /Users/prabu-pt1927/Downloads/apache-tomcat-9.0.4
Using CATALINA_TMPDIR: /Users/prabu-pt1927/Downloads/apache-tomcat-9.0.4/temp
Using JRE_HOME: /Library/Java/JavaVirtualMachines/jdk1.8.0_77.jdk/Contents/Home
Using CLASSPATH: /Users/prabu-pt1927/Downloads/apache-tomcat-9.0.4/bin/bootstrap.jar:/Users/prabu-pt1927/Downloads/apache-tomcat-9.0.4/bin/tomcat-juli.jar
Feb 06, 2018 12:22:51 PM org.apache.catalina.startup.Catalina stopServer SEVERE: Could not contact [localhost:[8005]]. Tomcat may not be running.
Feb 06, 2018 12:22:51 PM org.apache.catalina.startup.Catalina stopServer SEVERE: Catalina.stop: java.net.ConnectException: Connection refused
  at java.net.PlainSocketImpl.socketConnect(Native Method)
  at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
  at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
  at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
  at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
  at java.net.Socket.connect(Socket.java:589)
  at java.net.Socket.connect(Socket.java:538)
  at java.net.Socket.<init>(Socket.java:434)
  at java.net.Socket.<init>(Socket.java:211)
  at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:492)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)``
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:498)
  at org.apache.catalina.startup.Bootstrap.stopServer(Bootstrap.java:406)
  at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:495)