4BSD/usr/man/cat1/ex.1

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 provides a comprehensive
     introduction to _e_d_i_t assuming no previous knowledge of com-
     puters 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._5 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 intro-
     duction to more advanced forms of editing using the command
     mode of _e_x see the editing documents written by Brian Ker-
     nighan 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 introduces the
     display editor _v_i and provides reference material on _v_i. All
     of these documents can be found in volume 2c of the
     Programmer's Manual.  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 useful with the _I_n_t_r_o_d_u_c_t_i_o_n.

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



Printed 11/10/80             8/26/80                            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(5)

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 11/10/80             8/26/80                            2