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elvrec(1) [minix man page]

ELVREC(1)						      General Commands Manual							 ELVREC(1)

elvrec - Recover the modified version of a file after a crash SYNOPSIS
elvrec [preservedfile [newfile]] DESCRIPTION
If you're editing a file when elvis dies, the system crashes, or power fails, the most recent version of your text will be preserved. The preserved text is stored in a special directory; it does NOT overwrite your text file automatically. The elvrec program locates the preserved version of a given file, and writes it over the top of your text file -- or to a new file, if you prefer. The recovered file will have nearly all of your changes. To see a list of all recoverable files, run elvrec with no arguments. FILES
/usr/preserve/p* The text that was preserved when elvis died. /usr/preserve/Index A text file which lists the names of all preserved files, and the names of the /usr/preserve/p* files which contain their preserved text. BUGS
elvrec is very picky about filenames. You must tell it to recover the file using exactly the same pathname as when you were editing it. The simplest way to do this is to go into the same directory that you were editing, and invoke elvrec with the same filename as elvis. If that doesn't work, then try running elvrec with no arguments, to see exactly which pathname it is using for the desired file. Due to the permissions on the /usr/preserve directory, on UNIX systems elvrec must be run as superuser. This is accomplished by making the elvrec executable be owned by "root" and setting its "set user id" bit. If you're editing a nameless buffer when elvis dies, then elvrec will pretend that the file was named "foo". AUTHOR
Steve Kirkendall ELVREC(1)

Check Out this Related Man Page

ex(1)							      General Commands Manual							     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 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.

       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.

       /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

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