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EX(1) BSD Reference 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(1) and requires a CRT. For users unfamiliar with ed(1), the editor edit is probably easier to learn. It avoids some of the complexities of ex used mostly by systems programmers and persons comfortable with the ed(1) editor. DOCUMENTATION The following documentation is found in the ``UNIX User's Manual Supplementary Documents'': Edit: A tutorial provides a comprehensive introduction to edit assuming no previous knowledge of computers or the UNIX system. Ex Reference Manual - Version 3.7 is a comprehensive and complete manual for the command mode features of ex, but you cannot learn to use the edi- tor 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(1); the material in the introductory and ad- vanced documents works also with ex. An Introduction to Display Editing with Vi introduces the display editor vi(1) and provides reference material on vi(1). In addition, the Vi Quick Reference card summarizes the commands of vi(1) in a useful, func- tional way, and is useful with the introduction. ENVIRONMENT The ex command uses the following environment variables. EXINIT User specified startup values for ex. HOME Default directory to search for the file ~/.exrc SHELL Shell used for escaped commands (with the ! command). TERM Terminal type. TERMCAP Alternate termcap file. FILES /usr/libexec/ex?.?strings error messages /usr/libexec/ex?.?recover recover command /usr/libexec/ex?.?preserve preserve command /usr/share/misc/termcap describes capabilities of terminals ~/.exrc editor startup file /tmp/Exnnnnn editor temporary /tmp/Rxnnnnn named buffer temporary /var/preserve preservation directory SEE ALSO awk(1), ed(1), grep(1), sed(1), grep(1), vi(1), termcap(5), envi- ron(7) HISTORY Ex appeared in 3BSD. 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 `-' op- tion 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 resul- tant files. 4th Berkeley Distribution June 21, 1993 2
NAME | SYNOPSIS | DESCRIPTION | DOCUMENTATION | ENVIRONMENT | FILES | SEE ALSO | HISTORY | BUGS
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