Command line (English: Command line interface, CLI) is a type of text interface (TUI) between a person and a computer, in which instructions to the computer are given primarily by entering text lines (commands) from the keyboard, in UNIX systems mouse usage is possible. It is also known by the names "console" and "terminal."
To invoke the command line, you need to press the Windows+R keys on the keyboard (the Windows button is the button with the window image, usually there are two of them on the keyboard) and enter the command cmd.
After entering the command and pressing OK or Enter, the command line will open for you.
In it, you can issue various commands to the computer. For example, you can check access to a resource with the ping command. The screenshot shows the result of pinging the mail.ru resource.
