VI(1)               UNIX Programmer's Manual                VI(1)

NAME
     vi - screen oriented (visual) display editor based on ex

SYNOPSIS
     vi [ -t tag ] [ -r ] [ +_l_i_n_e_n_o ] name ...

DESCRIPTION
     _V_i (visual) is a display oriented text editor based on
     _e_x(1).  _E_x and _v_i run the same code; it is possible to get
     to the command mode of _e_x from within _v_i and vice-versa.

     The _V_i _Q_u_i_c_k _R_e_f_e_r_e_n_c_e card and the _I_n_t_r_o_d_u_c_t_i_o_n _t_o _D_i_s_p_l_a_y
     _E_d_i_t_i_n_g _w_i_t_h _V_i provide full details on using _v_i.

FILES
     See _e_x(1).

SEE ALSO
     ex (1), ``Vi Quick Reference'' card, ``An Introduction to
     Display Editing with Vi''.

BUGS
     Scans with / and ? begin on the next line, skipping the
     remainder of the current line.

     Software tabs using ^T work only immediately after the
     _a_u_t_o_i_n_d_e_n_t.

     Left and right shifts on intelligent terminals don't make
     use of insert and delete character operations in the termi-
     nal.

     The _w_r_a_p_m_a_r_g_i_n option can be fooled since it looks at output
     columns when blanks are typed.  If a long word passes
     through the margin and onto the next line without a break,
     then the line won't be broken.

     Insert/delete within a line can be slow if tabs are present
     on intelligent terminals, since the terminals need help in
     doing this correctly.

     Occasionally inverse video scrolls up into the file from a
     diagnostic on the last line.

     Saving text on deletes in the named buffers is somewhat
     inefficient.

     The _s_o_u_r_c_e command does not work when executed as :source;
     there is no way to use the :append, :change, and :insert
     commands, since it is not possible to give more than one
     line of input to a : escape.  To use these on a :global you
     must Q to _e_x command mode, execute them, and then reenter

Printed 12/7/82                                                 1

VI(1)               UNIX Programmer's Manual                VI(1)

     the screen editor with _v_i or _o_p_e_n.

Printed 12/7/82                                                 2