In RUNNING.txt it says you can have a single copy of Tomcat binary shared among multiple users on the same server by setting the "environment variable" $CATALINA_BASE to the directory that contains the files for each personal Tomcat instance.
As simple as that reads, I don't understand it. I don't understand how this is different than a virtual host with different appBase's. Is it saying that whoever has a user login on the server can have their own Tomcat playground even though there is just one Tomcat installed? So, if on Windows, you set a User environment variable of CATALINA_BASE to something like C:\TomcatDevUser1 ... that's it? Tomcat figures out the CATALINA_BASE variable depending on who is logged in? Does C:\TomcatDevUser1 need a ROOT directory for their default webapp? Leo