Basic Ubuntu install in VirtualBox, login, enable superuser (root), put Terminal shortcut on desktop, install a perl module from cpan, reboot/shutdown, unmount ubuntu install iso image, mount GuestAdditions, boot ... https://www.youtube.com/watch?v=RGfIZSkYhV4
How to install Unix on a PC for beginners. Learn Unix today without the need for a new PC, operating system install or an expensive Mac. Installing cygwin in minutes
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https://www.youtube.com/watch?v=tjnVRuLwFt4