In the next few lectures, we will be using the cal command to display a calendar in the terminal.

However,  the cal command is no longer included in more recent versions of Ubuntu (20.04 onwards, I believe), so you may receive a message in your terminal asking you to install the ncal package.

You can do install this package by following the instructions below:

1) Type sudo apt -y install ncal  in your terminal

2) Press Enter

3) Type in your password (nothing will show up, but its working [this is a security feature])

4) Press Enter

It should then install for you, and you can then follow along using the cal command like I do in the videos!

Best wishes,

Ziyad