


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



NAME
     ex, edit - text editor

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

DESCRIPTION
     _E_x is the root of a family of editors: _e_d_i_t, _e_x and _v_i. _E_x
     is a superset of _e_d, with the most notable extension being a
     display editing facility.	Display based editing is the
     focus of _v_i.

     If you have not used _e_d, or are a casual user, you will find
     that the editor _e_d_i_t is convenient for you.  It avoids some
     of the complexities of _e_x used mostly by systems programmers
     and persons very familiar with _e_d.

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

DOCUMENTATION
     The document _E_d_i_t: _A _t_u_t_o_r_i_a_l (USD:14) provides a comprehen-
     sive introduction to _e_d_i_t assuming no previous knowledge of
     computers or the UNIX system.

     The _E_x _R_e_f_e_r_e_n_c_e _M_a_n_u_a_l - _V_e_r_s_i_o_n _3._7 (USD:16) is a
     comprehensive and complete manual for the command mode
     features of _e_x, 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 _e_x see the editing docu-
     ments written by Brian Kernighan for the editor _e_d; the
     material in the introductory and advanced documents works
     also with _e_x.

     _A_n _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 (USD:15) intro-
     duces the display editor _v_i and provides reference material
     on _v_i. In addition, the _V_i _Q_u_i_c_k _R_e_f_e_r_e_n_c_e card summarizes
     the commands of _v_i in a useful, functional way, and is use-
     ful with the _I_n_t_r_o_d_u_c_t_i_o_n.

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/Ex_n_n_n_n_n	      editor temporary
     /tmp/Rx_n_n_n_n_n	      named buffer temporary
     /usr/preserve	      preservation directory



Printed 11/26/99	October 21, 1996			1






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



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

     _U_n_d_o never clears the buffer modified condition.

     The _z command prints a number of logical rather than physi-
     cal 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 11/26/99	October 21, 1996			2



