Re: Serious question
"I would need to be using a command line and using such nice commands as:-
"sudo add-apt-repository xxxx" instead of simply double left clicking on "setup" and clicking "next, next, next" etc?"
Well I don't use Mint but I installed it to a VM to answer a query recently. It took ~20mins to install and then the GUI Synaptics could be used to install software and add repos. But as P.Git mentions it's not unusual and indeed encouraged to use the command-line in Windows anyway - so what exactly is your issue ?