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EX(1)											    EX(1)

       ex, edit - text editor

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

       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 con-
       venient for you.  It avoids some of the complexities of ex used mostly by systems program-
       mers 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.

       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 intro-
       ductory 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.

       /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

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

       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.

       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)
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