Linux package management with apt: 
On Linux, package managers help you handle updates, uninstalls, troubleshooting, and more for the software on your computer. Seth Kenlon wrote about dnf, the command-line package management tool for installing software in RHEL, CentOS, Fedora, Mageia, OpenMandriva, and other Linux distros.
read more: Opensource.com clhermansen
Supporting Open Source.
Have you tried: Travelling to South Africa?