A command-line interface or command language interpreter (CLI), also known as command-line user interface, console user interface, and character user interface (CUI), is a means of interacting with a computer program where the user (or client) issues commands to the program in the form of successive lines of text (command lines).
Did you ever tried to guess your friends password? Did you ever tried to login to your partners password protected computer? Sounds silly and childish but many are guilty of …