QUICK INTRODUCTION TO THE vi VIDEO EDITOR
                T.C. Slattery, US Naval Academy

ENTERING vi

        vi name         start vi editor with file   name   .
                        The file is created if it doesn't exist.

LEAVING vi

        ZZ              exit from vi, saving changes.
        :wq             exit from vi, saving changes.
        :q!             exit from vi, discarding changes.

CURSOR POSITIONING

        h               moves left one character position.
        j               moves down one line.
        k               moves up one line.
        l               moves right one character position.
        0 (zero)        moves to the beginning of a line.
        w               moves right one word.
        b               moves left one word.
        CTRL-u          moves up 1/2 screen full.
        CTRL-d          moves down 1/2 screen full.
        G               moves to the bottom of the file.
        nG              moves to line number   n   .
        CTRL-l (ell)    clear screen and re-draw.

NOTES:
        ESC     represents the ESC key.  Press the ESC key when it is
                called for in the following commands.
        CTRL-   represents the CTRL key.  Hold the CTRL key and press the
                following key simultaneously.
        CR      represents the ENTER (also called RETURN) key.

TEXT MODIFICATION

        itextESC        inserts   text   to the left of the cursor.
                         Insert doesn't cause the cursor to move;  text
                         appears as it is typed, terminate with ESC.
        atextESC        appends  (inserts)   text   to the right of the
                         cursor, terminate with ESC.
        otextESC        opens a new line below the one the cursor is
                         currently in and puts   text   there,
                         terminate with ESC.
        OtextESC        opens a new line above the one the cursor is
                         currently in and puts   text   there,
                         terminate with ESC.
        RtextESC        Replaces (overprints) characters at the cursor
                         position, terminate with ESC.
        dd              deletes the line the cursor is on.
        ndd             deletes   n   lines from the cursor position.
                         NOTE: Deleted lines are replaced with the character
                           @   (which is removed when the page is re-drawn)
                           when using vi over slow modem connections.
        D               deletes characters from the cursor position to the
                         end of the line.
        x               deletes the character at the cursor.
        nx              deletes   n   characters to the right of the
                         cursor.
        u               undo the last change.

PATTERN SEARCHING

        /patCR          positions the cursor at the next occurrence
                         of the string   pat   (follow the pattern
                         with hitting the enter, that is carriage
                         return, key).

--------SECOND LEVEL vi EDITING COMMANDS-------------------

CURSOR POSITIONING

        }               move down one paragraph.
        {               move up one paragraph.
        mx              save the current cursor position and label it
                        with the letter x. (x is any letter)
        'x              return to the cursor position labeled x.

TEXT MODIFICATION

        dw              delete the next word.
        .      (period) repeat last change.
        A               append at the end of the current line.
        P               put back deleted line(s).  Text deleted with D
                        and dd commands may be pasted back with the P
                        command.  Text is pasted in before the cursor
                        position.
      :a,bs/old/newCR  From line number 'a' to line number 'b', substitute
                        the pattern 'old' with the pattern 'new'.  You
                        may use any text string which doesn't contain a
                        carriage return in place of the 'old' and 'new'
                        strings.  Use CTRL-G to tell what line the cursor is
                        on (after typing the new string, hit the enter key).
PATTERN SEARCHING

        /CR             search for the next occurrence of a previously
                        specified search string (type the slash key then
                        the enter, i.e. carriage return, key).

MISCELLANEOUS

        :wCR            write out current changes.  The vi editor works
                        on a copy of your file.  The :w command causes
                        the editor to write its copy over the original
                        which is on the disk (type the colon then the w
                        and then the enter key).
        :w nameCR       write out changes to the file  name  .  This is
                        like the :w command but the changes are written
                        into the file you specify.  (good for making
                        intermediate copies)
Cut and Paste           Move to the beginning of the text to cut.  Use dd
                        to delete (cut) several lines.  Use D to cut only
                        the end of one line.  Move to the place where you
                        wish to paste the text.  Use P to put back the text.
                        You may need to clean up the spacing after pasting.