How can I get a list of all the defined variables in Matlab or Octave?

I'm used to working in Matlab using its full GUI environment. Due to license issues I went and installed Octave, but it appears that it doesn't have a GUI, at least not one that's installed by default. I transferred the variables from Matlab to Octave by `save`ing them in Matlab and `load`ing them in Octave. Thing is, I don't remember the names because I got used to seeing them in the little workspace window which I no longer have. How can I see the list of defined variables and their types in Octave?