CommandBox stores information about each of the servers you've ever started inside ~/.CommandBox/servers.json so it can remember settings from one run to the next.
You can see an overview of your servers and what state they're in with the server list command.
If you have many servers, you can provide parmeters to help filter the results from server list
To list only the servers that have been started in a given directory, use the --local flag.
You can take a quick look at the what's been happening with the server log command or use the server status command to see more detailed information including the arguments used previously to start/stop the server.
Servers are uniquely identified by their full path, but they also have a short name which defaults to the immediate folder containing their web root. The stop, start, etc commands can be run in the web root for a server, or in any working directory as long as you reference the server's short name.
Another handy shortcut is the server cd command that will change the current working directory of the interactive shell to the web root of a named server.
Info Server name is the first parameter to all server commands and tab completion works too, making it as easy as possible for you.
You can get information about a server using the server info command. Add the --JSON flag to get the data back in a JSON format. The property parameter will allow you to retrieve a single value for scripting mashups.
If you want to wipe all configuration, logs, and WEB-INF files for a server, use the server forget command. This will also remove any administrator settings you may have saved including data sources, mail servers, and server mappings.
You can forget all your servers at once too if you want to start with a clean slate. This command will stop and forget all servers.