Failed to start tomcat.service after install Tomcat9 by YUM

I installed tomcat9 on my EC2 server using commands sudo su yum install tomcat9 Then I tried running the command: /usr/sbin/tomcat9 start Then the error message is: Failed to start tomcat.service: Unit tomcat.service not found. Am I missing anything? What file is tomcat.service? Where do I need to create it? What does it contain? sudo tee /etc/systemd/system/tomcat.service 5月 16 16:08:18 ip-172-31-25-139.us-west-2.compute.internal systemd: tomcat.service: Failed at step EXEC spawning /usr/share/tomcat9/bin/catalina.sh: No such file or dire> 5月 16 16:08:18 ip-172-31-25-139.us-west-2.compute.internal systemd: tomcat.service: Control process exited, code=exited, status=203/EXEC 5月 16 16:08:18 ip-172-31-25-139.us-west-2.compute.internal systemd: tomcat.service: Failed with result 'exit-code'. 5月 16 16:08:18 ip-172-31-25-139.us-west-2.compute.internal systemd: Failed to start tomcat.service - Tomcat Server. I checked the directory /usr/share/tomcat9/bin and I did not see the file catalina.sh. Am I missing any steps in my installation?