Accessing the shell
When it comes to Linux, there is very rarely (if ever) a single way to do anything. Just like you have your pick between desktop environments, text editors, browsers, and just about anything else, you also have a choice when it comes to accessing a Linux terminal to execute shell commands. As a matter of fact, you even have a choice on which terminal emulator to use in order to interpret your commands.
Linux Mint comes bundled with an application called the GNOME Terminal. This application is actually developed for a completely different desktop environment (GNOME) but is included in Mint because the Mint developers did not create their own terminal emulator for Cinnamon. The GNOME Terminal did the job very well, so there was no need to reinvent the wheel. Once you open the GNOME Terminal, it is ready to do your bidding right away. The following screenshot shows the GNOME terminal, ready for action:
As mentioned earlier, there are other terminal emulators that are available...