The -v flag is pretty common for Linux commands. It enables verbose mode, which is useful to see what happens in the background when you run a command. For the cp command specifically, the -v flag ...
Click the plus icon to quickly add a new event. Use the pin button to keep the calendar visible, so you can check something ...
Do you want to use Linux, but are afraid that you'll have to use the command line? Fret not, as there is probably a GUI that can handle the command you might need.
Linux isn't just about picking a distro or desktop environment - it's also about optimizing how you interact with your PC for maximum efficiency.