vi
Description
vi (visual) is a display-oriented text editor based on an
underlying line editor ex. It is possible to use the com-
mand mode of ex from within vi and vice-versa. The visual
commands are described on this manual page; how to set
options (like automatically numbering lines and automati-
cally starting a new output line when you type carriage
return) and all ex line editor commands are described on the
ex(1) manual page.
Start
Type at your prompt: vi [file_name]. Press ENTER.
Help Information
Type at your vi command line: :!man vi.
Documentation
Manual available.
User's Guide,Editing Guide,
curses/terminfo chapter of the Programmer's Guide