Fast way to Start VM and SSH into it on Mac

Though Mac OS is based on FreeBSD, but still lots of unix-based tools are not as good as those on Linux. And, it turns out people start to use "port", "brew", etc to get the tools they want. However, in my point of view, "port", "brew", etc are still not good as "apt-get" or "yum" since they are not well integrated.

So, I am using VirtualBox with Ubuntu guest. And, I write a simple script to:

• Start the Ubuntu VM
• SSH into the machine
• Save the VM state when finishes SSH

I don't even need the GUI of Ubuntu. Also, the machine saves its state instead of turning off, so I don't have to wait long.