How to pass tomcat port number on command line?

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Change your server.xml so that it will use port numbers expanded from properties instead of hardcoded ones:

<Server port="${port.shutdown}" shutdown="SHUTDOWN">
...
  <Connector port="${port.http}" protocol="HTTP/1.1"/>
...
</Server>

Here’s how you can start in Linux (assuming your current directory is CATALINA_HOME):

JAVA_OPTS="-Dport.shutdown=8005 -Dport.http=8080" bin/startup.sh

In windows it should be smth like following:

set "JAVA_OPTS=-Dport.shutdown=8005 -Dport.http=8080"
bin\startup.bat

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