usage: action [option] ACTION_PATH

Add a new action handler. For example, when the package in the config/track-config.xml is 'myapp',   
 
 > utgb action Hello 

creates a new action handler myapp/app/Hello.java in src/main/java folder.  

You can use a path notation to specify the action handler name 
 > utgb-shell add-action admin/Login 
to create a file, myapp/app/admin/Login.java.