One of the easiest commands to use is the cls (clear screen) command. This command takes no arguments. Its function is to clear everything in the command window, leaving just a prompt for your next command. For help information on this command, type help cls or cls/?.
You may want to use this command when the command window seems used up or cluttered with text.
To use this command, simply type cls in the command line and press enter. The screen will then be cleared, leaving you with a prompt for your next command.
Remember that, the commands are not case sensitive.