vi(1) [bsd man page]

VI(1)							      General Commands Manual							     VI(1)

NAME

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

SYNOPSIS

       vi [ -t tag ] [ -r ] [ +command ] [ -l ] [ -wn ] name ...

DESCRIPTION

       Vi (visual) is a display oriented text editor based on ex(1).  Ex and vi run the same code; it is possible to get to the command mode of ex
       from within vi and vice-versa.

       The Vi Quick Reference card and the Introduction to Display Editing with Vi provide full details on using vi.

FILES

       See ex(1).

SEE ALSO

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

AUTHOR

       William Joy
       Mark Horton added macros to visual mode and is maintaining version 3

BUGS

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

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

       The wrapmargin 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 cor-
       rectly.

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

       The source 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 ex command mode, execute them, and
       then reenter the screen editor with vi or open.

3rd Berkeley Distribution					  April 29, 1985							     VI(1)

EX(1)							      General Commands Manual							     EX(1)

NAME

       ex, edit - text editor

SYNOPSIS

       ex [ - ] [ -v ] [ -t tag ] [ -r ] [ +command ] [ -l ] name ...
       edit [ ex options ]

DESCRIPTION

       Ex  is  the  root of a family of editors: edit, ex and vi.  Ex is a superset of ed, with the most notable extension being a display editing
       facility.  Display based editing is the focus of vi.

       If you have not used ed, or are a casual user, you will find that the editor edit is convenient for you.  It avoids some of  the  complexi-
       ties of ex used mostly by systems programmers and persons very familiar with ed.

       If  you	have  a  CRT terminal, you may wish to use a display based editor; in this case see vi(1), which is a command which focuses on the
       display editing portion of ex.

DOCUMENTATION

       The document Edit: A tutorial (USD:14) provides a comprehensive introduction to edit assuming no previous knowledge  of	computers  or  the
       UNIX system.

       The  Ex	Reference Manual - Version 3.7 (USD:16) is a comprehensive and complete manual for the command mode features of ex, but you cannot
       learn to use the editor by reading it.  For an introduction to more advanced forms of editing using the command mode of ex see the  editing
       documents written by Brian Kernighan for the editor ed; the material in the introductory and advanced documents works also with ex.

       An  Introduction  to Display Editing with Vi (USD:15) introduces the display editor vi and provides reference material on vi.  In addition,
       the Vi Quick Reference card summarizes the commands of vi in a useful, functional way, and is useful with the Introduction.

FILES

       /usr/share/misc/exstrings	  error messages
       /usr/libexec/exrecover	     recover command
       /usr/sbin/expreserve	     preserve command
       /etc/termcap		describes capabilities of terminals
       ~/.exrc			editor startup file
       /tmp/Exnnnnn		editor temporary
       /tmp/Rxnnnnn		named buffer temporary
       /usr/preserve		preservation directory

SEE ALSO

       awk(1), ed(1), grep(1), sed(1), grep(1), vi(1), termcap(5), environ(7)

AUTHOR

       Originally written by William Joy
       Mark Horton has maintained the editor since version 2.7, adding macros, support for many unusual terminals, and other features such as word
       abbreviation mode.

BUGS

       The undo command causes all marks to be lost on lines changed and then restored if the marked lines were changed.

       Undo never clears the buffer modified condition.

       The  z  command	prints	a  number  of  logical rather than physical lines.  More than a screen full of output may result if long lines are
       present.

       File input/output errors don't print a name if the command line `-' option is used.

       There is no easy way to do a single scan ignoring case.

       The editor does not warn if text is placed in named buffers and not used before exiting the editor.

       Null characters are discarded in input files, and cannot appear in resultant files.

4th Berkeley Distribution					 October 21, 1996							     EX(1)