evaluating/investigating vmware, and how you create a "virtual machine" using the command line for rhel/centos.

basically, i want to be able to create a test virtual machine and then be able to run the VM on another system using the virtual player.

so, i'm looking for pointers/articles/instructions that detail what i need (in terms of tools/apps) and the steps needed to accomplish this.

i've seen a few articles/sites that discuss creating virtual machines, but they all involve using the GUI.

thanks

update::

while vmware is the company. there are different tools/apps provided to create a Virtual Machine.

Basically, I want to do a test, to ultimately have a Virtual Machine/Image that can be run on a separate server using the vmplayer app

I've seen docs that discuss using the GUI to create the VM, but haven't found any (yet) that discuss how to accomplish this using the command line approach.

thanks...