Having a server is cool, but sometimes you need more than one server. There are different approaches to this.
ps + echo
ps is a way of outputting all sorts of data for processes.
$ echo $$ # get current process pid $ ps -A -o ppid,pid,stat,comm # get processes for current pid
Jobs is a way to manage processes started by the current process.
$ jobs # get child processes for current pid + status of process