am a great user of tomcat when it comes to Java web application. I had fun with it. Being fast and allowing a bunch of things to be done by myself.. that being said, I am a regular user of glassfish as well. Specially the later version 3 looks awesome in a lot of ways..
I will try to use this blog to amend any hiccups whenever they appear and a bit of more tutorials as well.
The first one is the command line friend asadmin.
On the new version it will be found on
/glassfish-main-directory/glassfish3/glassfish/bin
Being on this directory if you issie
./asadmin
You will get the command line for it.
To add it to your path so that you can use it from any where in your terminal, just add it to your path
open your ~/.bash_profile or .bash_rc [create it if it doesnt exist and add the above directory at the end of it separated by appropriate directory separator.
That is it..