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Ed vs pico

 
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Old 08-02-2014
Ed vs pico
Hello!
Please, can someone make me clear the difference betveen and interactive and non-interactive test editor?
(is not each editor somehow "interactive"???)
Many thanks!!!
 
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LEARN ABOUT ULTRIX

edit

ex(1)							      General Commands Manual							     ex(1)

Name
       ex, edit - text editor

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

Description
       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.

Options
       -    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.

       +command
	    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 layered 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.

Restrictions
       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.

Files
       /usr/lib/ex?.?recover	     recover command
       /usr/lib/ex?.?preserve	     preserve command
       /etc/termcap		terminal capabilities
       ~/.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), vi(1), termcap(5), environ(7)
       "Edit: A Tutorial" and the "Ex Reference Manual" in the
       Supplementary Documents, Volume 1: General User

																	     ex(1)