Oct-05-2017, 09:11 AM
Well, it seems that you don't know what is bash shell and Python interpreter. When you open a terminal you see '$' sign at the end of the prompt. This is the bash shell prompt. The Python interpreter prompt is '>>>'. So, in that interpreter you can run only python "commands". In the bash, the one with the '$', you can run linux shell commands and programs. apt-get is such a program so you run it when you see '$' sign at the end of the prompt.
At the end just open a terminal window and run 'sudo apt-get update'.
At the end just open a terminal window and run 'sudo apt-get update'.