Ok. "Undefined" is not good. :-S
For the URL stuff: you can "cd REST-for-TYPO3-rest.cundd.net". I thought of the links as if they where folders where you can step into.
Oh, now that's cool ! I see you've added a "help" command. And "cd REST-for-TYPO3-rest.cundd.net" makes a lot of sense now that I can see that "REST-for-TYPO3-rest.cundd.net" is a directory with the "ll" command.
I like it ! :)
It's a bit awkward, to be frank, though. When I type "ls RE<tab>", it autocompletes to "README" even though there is another file called "REST-for-TYPO3-rest.cundd.net".
So then I type in the full filename and I get "undefined":
> cat REST-for-TYPO3-rest.cundd.net
undefined
Maybe "cat <filename>" could open the URL in a window or something. It seems like the only possible thing at the moment is "ls", "pwd" and "cat README".