Very Short Virus Help: Virus has 2 modes: command-mode and editing-mode. You start in the command-mode. In command-mode, you can enter any of the following commands. In editing-mode, you edit the document, and pressing ESC returns you to command-mode. Command i Enter editing mode. (Insert) a Enter editing mode. (Append) :w Save changes to file. :q Quit editor. x Delete character under cursor. dd Delete line under cursor. p Paste deleted text. :q! Quit, don't save changes to file. $ Move cursor to end of line. ^ Move cursor to beginning of line. G Move cursor to end of file.