Changes

We have created a debian repository to make it easier to use our tutorials. Using this repository will require that you have administrator access to the computer with Linux System. If you don't have this level of access or your computer running non-Linux systems (Windows or OS), you have two options. First, you could install the repository on a remote cloud serve, such as [https://www.vultr.com/ VULTR]. Second, we also provide a pre-configured virtual machine image (VM Image) that will allow you to install software, but you have to can install a virtual machine Virtual Machine program (such as [https://www.virtualbox.org/ VirtualBox]) on your computer first, and then load our pre-configured virtual machine image (VM Image) into the Virtual Machine.

If you want to install all below exercises, you could use the following command. In addition, you could also install these exercise separately using specific commands listed in each section below.  <pre>the command to install all