Each commands options can be seen by issuing the -h or --help argument on the command line

battery.rb  -   shows battery status, intends to fully replace battery meter on status bar
                * only tested on April 2010 13" MacBook Pro and the 11" MacBook Air

calendar.rb -   outputs a calendar in one line (3 actual lines, but not broken up by weeks)
                can display vertically or horizontally

date.rb	    -   this is just a simple script to output the date in various formats
                was my first ruby geeklet script, just figuring out how to do stuff
                mostly useless, but I still use it for displaying date information on my 
                screen