I'm on Windows, went to
%CATALINA_HOME%\bin\ and ran startup.
I did see another commandline window popup and tomcat was loading some webapps that were there before (I had run webapp inside my IDE before that, now wanted to try from commandline). Then the window disappeared. I tried the address
http://localhost:8080/manager/html, it's not loaded.
So how do I know tomcat is running on Windows. I tried Task Manager didn't see it there.