Originally Posted by chemicalfan
I don't have experience of VMWare, but Virtualbox suits my needs nicely (I use it to "dip my feet" into various distros, and their new releases to see if it's worth upgrading)
Really, you don't need vmware to play around and learn a linux CLI. I would just use virtualbox to do your learning. Also, learn more than just ubuntu's bash. In the working world, most people use other distros. My work chooses red hat. Things tend to be structured differently between the different linux releases, so knowing them will help in the long run.