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ex(1)									 ex(1)

       ex, edit - text editor

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

       The  editor  is	the  root  of a family of editors: and The editor is a
       superset of with the most notable  extension  being  a  display-editing
       facility.  Display-based editing is the focus of

       The name argument indicates the files to be edited.

       -    Suppresses	all  interactive-user feedback.	 This option is useful
	    in processing editor scripts in command files.

       -v   Equivalent to using rather than

       -t   Equivalent to an initial tag command, that is,  editing  the  file
	    containing the tag and positioning the editor at its definition.

       -r   Used  to  recover after an editor or system crash.	It recovers by
	    retrieving the last saved version of the named file.  If  no  file
	    is specified, it displays a list of saved files.

       -R   Sets the read-only option at the start.

	    Indicates  that the editor should begin by executing the specified
	    command.  If the command is omitted, it defaults to $, positioning
	    the	 editor	 at the last line of the first file, initially.	 Other
	    useful commands here are scanning patterns of the  form  +/pattern
	    or line numbers.

       -l   Sets  up  for  LISP.   That	 is,  it  sets	the showmatch and lisp
	    options.  The -x option is available only if the  Encryption  lay‐
	    ered product is installed.

       -x   Causes to prompt for a key. The key is used to encrypt and decrypt
	    the contents of the file. If the file contents have been encrypted
	    with one key, you must use the same key to decrypt them.

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

       The command does not clear the buffer modified condition.

       The z command prints a number of logical rather	than  physical	lines.
       More than a screenful of output may result if long lines are present.

       File  input/output errors do not print a name if the command line minus
       sign (-) option is used.

       There is no easy way to do a single scan ignoring case.

       The editor does not warn you if you place text in named buffers and  do
       not use it before exiting the editor.

       Null  characters	 are  discarded from input files, and cannot appear in
       output files.

       The command uses a symbolic link to to preserve and recover  an	edited
       file.   It is required that the symbolic link is there to allow to work

       recover command

       preserve command

       terminal capabilities

       editor startup file

       editor temporary

       named buffer temporary

       preservation directory

See Also
       awk(1), ed(1), grep(1), sed(1), vi(1), termcap(5), environ(7)
       Edit: A Tutorial and the Ex Reference Manual in the
       Supplementary Documents, Volume 1: General User


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