55 lines
1.9 KiB
Groff
55 lines
1.9 KiB
Groff
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.TH ELVPRSV 8
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.SH NAME
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elvprsv - Preserve the the modified version of a file after a crash.
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.SH SYNOPSIS
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.nf
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\fB\fBelvprsv\fP ["-\fIwhy elvis died\fP"] /tmp/\fIfilename\fP...
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\fB\fBelvprsv\fP -R /tmp/\fIfilename\fP...
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.fi
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.SH DESCRIPTION
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.PP
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\fIelvprsv\fP preserves your edited text after \fIelvis\fP dies.
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The text can be recovered later, via the \fIelvprsv\fP program.
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.PP
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For UNIX-like systems,
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you should never need to run this program from the command line.
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It is run automatically when \fIelvis\fP is about to die,
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and it should be run (via /etc/rc) when the computer is booted.
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THAT'S ALL!
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.PP
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For non-UNIX systems such as MS-DOS, you can either use \fIelvprsv\fP
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the same way as under UNIX systems (by running it from your AUTOEXEC.BAT file),
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or you can run it separately with the "-R" flag to recover the files
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in one step.
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.PP
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If you're editing a file when \fIelvis\fP dies
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(due to a bug, system crash, power failure, etc.)
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then \fIelvprsv\fP will preserve the most recent version of your text.
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The preserved text is stored in a special directory; it does NOT overwrite
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your text file automatically.
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.PP
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\fIelvprsv\fP will send mail to any user whose work it preserves,
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if your operating system normally supports mail.
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.SH FILES
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.IP /tmp/elv*
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The temporary file that \fIelvis\fP was using when it died.
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.IP /usr/preserve/p*
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The text that is preserved by \fIelvprsv\fP.
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.IP /usr/preserve/Index
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A text file which lists the names of all preserved files, and the names
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of the /usr/preserve/p* files which contain their preserved text.
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.SH BUGS
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.PP
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Due to the permissions on the /usr/preserve directory, on UNIX systems
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\fIelvprsv\fP must be run as superuser.
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This is accomplished by making the \fIelvprsv\fP executable be owned by "root"
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and turning on its "set user id" bit.
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.PP
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If you're editing a nameless buffer when \fIelvis\fP dies, then \fIelvprsv\fP will pretend
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that the file was named "foo".
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.SH AUTHOR
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.nf
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Steve Kirkendall
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kirkenda@cs.pdx.edu
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.fi
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