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79ea3b49b1
The computing of replacement bytes for overwriting undeletable files uses random values and standard ones instead of the values provided in option --bytes. Fix the mixup between both logics, mention the difference in the documentation and reject defining both options --bytes and --undel.
135 lines
4.0 KiB
Groff
135 lines
4.0 KiB
Groff
.\" Copyright (c) 2014 Jean-Pierre Andre
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.\" This file may be copied under the terms of the GNU Public License.
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.\"
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.TH NTFSWIPE 8 "June 2014" "ntfs-3g @VERSION@"
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.SH NAME
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ntfswipe \- overwrite unused space on an NTFS volume
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.SH SYNOPSIS
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\fBntfswipe\fR [\fIoptions\fR] \fIdevice\fR
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.SH DESCRIPTION
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.B ntfswipe
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clears all or part of unused space on an NTFS volume by overwriting
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with zeroes or random bytes.
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.SH OPTIONS
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Below is a summary of all the options that
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.B ntfswipe
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accepts. Nearly all options have two equivalent names. The short name is
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preceded by
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.B \-
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and the long name is preceded by
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.BR \-\- .
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Any single letter options, that don't take an argument, can be combined into a
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single command, e.g.
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.B \-fv
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is equivalent to
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.BR "\-f \-v" .
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Long named options can be abbreviated to any unique prefix of their name.
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.TP
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\fB\-a\fR, \fB\-\-all\fR
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Wipe all unused space. This may take significant time. If the option
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\-\-unused-fast (or -U) is also present, the faster wiping method is used.
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.TP
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\fB\-b\fR, \fB\-\-bytes\fR BYTE-LIST
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Define the allowed replacement bytes which are drawn randomly to overwrite
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the unused space. BYTE-LIST is a comma-separated list of values in
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range 0-255 expressed in octal, decimal or hexadecimal base.
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.TP
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\fB\-c\fR, \fB\-\-count\fR NUM
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Define the number of times the unused space is to be overwritten. If both
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options \fB\-\-bytes\fR and \fB\-\-count\fR are set, the space is
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repeatedly overwritten this number of times by each of the values in the list.
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.TP
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\fB\-d\fR, \fB\-\-directory\fR
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Wipe all the directory indexes, which may contain names of deleted files.
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.TP
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\fB\-f\fR, \fB\-\-force\fR
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This will override some sensible defaults, such as not using a mounted volume.
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Use this option with caution.
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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Show a list of options with a brief description of each one.
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.TP
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\fB\-i\fR, \fB\-\-info\fR
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Display details about unused space, without wiping anything.
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.TP
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\fB\-l\fR, \fB\-\-logfile\fR
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Overwrite the logfile (update journal).
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.TP
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\fB\-m\fR, \fB\-\-mft\fR
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Overwrite the unused space in the MFT (main file table, which contains the
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file names, and the contents of short files).
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.TP
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\fB\-n\fR, \fB\-\-no-action\fR
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Executes the wiping process without writing to device.
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.TP
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\fB\-p\fR, \fB\-\-pagefile\fR
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Overwrite the Windows swap space.
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.TP
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\fB\-q\fR, \fB\-\-quiet\fR
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Suppress some debug/warning/error messages.
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.TP
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\fB\-s\fR, \fB\-\-undel\fR
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Overwrite the space which had been allocated to a file which has been deleted
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recently and is still undeletable. This option is not compatible with
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\fB\-\-bytes\fR and the replacement bytes are random ones or taken from a
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standard list.
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.TP
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\fB\-t\fR, \fB\-\-tails\fR
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Overwrite the space at the end of files which is unused, but allocated
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because the allocations are always done by full clusters.
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.TP
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\fB\-u\fR, \fB\-\-unused\fR
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Overwrite the space which is currently not allocated to any file (but
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may have been used in the past).
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.TP
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\fB\-U\fR, \fB\-\-unused-fast\fR
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Overwrite the space which is currently not allocated to any file, trying
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not to overwrite the space not written to since the previous wiping.
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.TP
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\fB\-v\fR, \fB\-\-verbose\fR
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Display more debug/warning/error messages. This option may be used twice
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to display even more messages.
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.TP
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\fB\-V\fR, \fB\-\-version\fR
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Show the version number, copyright and license of
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.BR ntfswipe .
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.SH EXAMPLES
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Wipe out all unused space in an NTFS volume.
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.RS
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.sp
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.B ntfswipe -a /dev/sda1
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.sp
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.RE
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Wipe out all deleted file names from an NTFS volume.
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.RS
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.sp
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.B ntfswipe -dms /dev/sda1
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.sp
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.RE
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.SH BUGS
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There are no known problems with
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.BR ntfswipe .
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If you find a bug please send an email describing the problem to the
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development team:
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.br
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.nh
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ntfs\-3g\-devel@lists.sf.net
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.hy
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.SH AUTHORS
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.B ntfswipe
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was written by Richard Russon, Anton Altaparmakov and Yura Pakhuchiy.
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It was ported to ntfs-3g by Erik Larsson.
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.SH AVAILABILITY
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.B ntfswipe
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is part of the
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.B ntfs-3g
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package and is available from:
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.br
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.nh
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http://www.tuxera.com/community/
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.hy
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.SH SEE ALSO
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.BR ntfs-3g (8),
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.BR ntfsls (8),
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.BR ntfsprogs (8)
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