EX(1)                   GENIX Programmer's 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 com-
           plexities 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 edi-
           tor; 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 provides a comprehensive  introduction
           to edit assuming no previous knowledge of computers or the UNIX sys-
           tem.

           The Ex Reference Manual - Version 3.5 is a  comprehensive  and  com-
           plete  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 edit-
           ing 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  introduces  the  display
           editor  vi and provides reference material on vi. All of these docu-
           ments can be found in volume 2c  of  the  Programmer's  Manual.   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/lib/ex?.?strings         error messages
           /usr/lib/ex?.?recover         recover command
           /usr/lib/ex?.?preserve        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),



      Printed 11/16/83                                                        1

      EX(1)                   GENIX Programmer's Manual                   EX(1)



           environ(5)

      AUTHOR
           Originally written by William Joy
           Mark Horton has maintained the editor since version 2.7, adding mac-
           ros,  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.



























      Printed 11/16/83                                                        2