Directly, the ULib portions that even ULX relies on for all it's commands, most of them can be found
here - http://ulyssesmod.net/docs/files/lua/ULib/shared/commands-lua.htmlI've never looked at the code of player title to know how close it is to ULX originally.
However, for a perfect example of ULX command system "before and after", see MrPresident's "ulx explode" in the releases section.
The original post has code for the old non-SVN ULX.
The last page or so, look for my post with an attachment which I practiced converting it.
To me, the new command system looked scary at first... however, once I realized it was just treating each 'function' as an object, then allowing various checks on the options/variables/input of that function command setup instead of the function itself checking every time...it became clear, and in my opinion, much less convoluted.
The way we have the command system now, you can spend time on writing the function, instead of sanity checking the input to the function. The command system does most of the checking for you.