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<H1>NTFSWIPE</H1>
Section: Maintenance Commands (8)<BR>Updated: June 2014<BR><A HREF="#index">Index</A>
<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
<A NAME="lbAB">&nbsp;</A>
<H2>NAME</H2>
ntfswipe - overwrite unused space on an NTFS volume
<A NAME="lbAC">&nbsp;</A>
<H2>SYNOPSIS</H2>
<B>ntfswipe</B> [<I>options</I>] <I>device</I>
<A NAME="lbAD">&nbsp;</A>
<H2>DESCRIPTION</H2>
<B>ntfswipe</B>
clears all or part of unused space on an NTFS volume by overwriting
with zeroes or random bytes.
<A NAME="lbAE">&nbsp;</A>
<H2>OPTIONS</H2>
Below is a summary of all the options that
<B>ntfswipe</B>
accepts. Nearly all options have two equivalent names. The short name is
preceded by
<B>-</B>
and the long name is preceded by
<B>--</B>.
Any single letter options, that don't take an argument, can be combined into a
single command, e.g.
<B>-fv</B>
is equivalent to
<B>-f -v</B>.
Long named options can be abbreviated to any unique prefix of their name.
<DL COMPACT>
<DT id="1"><B>-a</B>, <B>--all</B><DD>
Wipe all unused space. This may take significant time. If the option
--unused-fast (or -U) is also present, the faster wiping method is used.
<DT id="2"><B>-b</B>, <B>--bytes</B> BYTE-LIST<DD>
Define the allowed replacement bytes which are drawn randomly to overwrite
the unused space. BYTE-LIST is a comma-separated list of values in
range 0-255 expressed in octal, decimal or hexadecimal base.
<DT id="3"><B>-c</B>, <B>--count</B> NUM<DD>
Define the number of times the unused space is to be overwritten. If both
options <B>--bytes</B> and <B>--count</B> are set, the space is
repeatedly overwritten this number of times by each of the values in the list.
<DT id="4"><B>-d</B>, <B>--directory</B><DD>
Wipe all the directory indexes, which may contain names of deleted files.
<DT id="5"><B>-f</B>, <B>--force</B><DD>
This will override some sensible defaults, such as not using a mounted volume.
Use this option with caution.
<DT id="6"><B>-h</B>, <B>--help</B><DD>
Show a list of options with a brief description of each one.
<DT id="7"><B>-i</B>, <B>--info</B><DD>
Display details about unused space, without wiping anything.
<DT id="8"><B>-l</B>, <B>--logfile</B><DD>
Overwrite the logfile (update journal).
<DT id="9"><B>-m</B>, <B>--mft</B><DD>
Overwrite the unused space in the MFT (main file table, which contains the
file names, and the contents of short files).
<DT id="10"><B>-n</B>, <B>--no-action</B><DD>
Executes the wiping process without writing to device.
<DT id="11"><B>-p</B>, <B>--pagefile</B><DD>
Overwrite the Windows swap space.
<DT id="12"><B>-q</B>, <B>--quiet</B><DD>
Suppress some debug/warning/error messages.
<DT id="13"><B>-s</B>, <B>--undel</B><DD>
Overwrite the space which had been allocated to a file which has been deleted
recently and is still undeletable. This option is not compatible with
<B>--bytes</B> and the replacement bytes are random ones or taken from a
standard list.
<DT id="14"><B>-t</B>, <B>--tails</B><DD>
Overwrite the space at the end of files which is unused, but allocated
because the allocations are always done by full clusters.
<DT id="15"><B>-u</B>, <B>--unused</B><DD>
Overwrite the space which is currently not allocated to any file (but
may have been used in the past).
<DT id="16"><B>-U</B>, <B>--unused-fast</B><DD>
Overwrite the space which is currently not allocated to any file, trying
not to overwrite the space not written to since the previous wiping.
<DT id="17"><B>-v</B>, <B>--verbose</B><DD>
Display more debug/warning/error messages. This option may be used twice
to display even more messages.
<DT id="18"><B>-V</B>, <B>--version</B><DD>
Show the version number, copyright and license of
<B>ntfswipe</B>.
</DL>
<A NAME="lbAF">&nbsp;</A>
<H2>EXAMPLES</H2>
Wipe out all unused space in an NTFS volume.
<DL COMPACT><DT id="19"><DD>
<P>
<B>ntfswipe -a /dev/sda1</B>
<P>
</DL>
Wipe out all deleted file names from an NTFS volume.
<DL COMPACT><DT id="20"><DD>
<P>
<B>ntfswipe -dms /dev/sda1</B>
<P>
</DL>
<A NAME="lbAG">&nbsp;</A>
<H2>BUGS</H2>
There are no known problems with
<B>ntfswipe</B>.
If you find a bug please send an email describing the problem to the
development team:
<BR>
<A HREF="mailto:ntfs-3g-devel@lists.sf.net">ntfs-3g-devel@lists.sf.net</A>
<A NAME="lbAH">&nbsp;</A>
<H2>AUTHORS</H2>
<B>ntfswipe</B>
was written by Richard Russon, Anton Altaparmakov and Yura Pakhuchiy.
It was ported to ntfs-3g by Erik Larsson.
<A NAME="lbAI">&nbsp;</A>
<H2>AVAILABILITY</H2>
<B>ntfswipe</B>
is part of the
<B>ntfs-3g</B>
package and is available from:
<BR>
<A HREF="http://www.tuxera.com/community/">http://www.tuxera.com/community/</A>
<A NAME="lbAJ">&nbsp;</A>
<H2>SEE ALSO</H2>
<B><A HREF="/cgi-bin/man/man2html?8+ntfs-3g">ntfs-3g</A></B>(8),
<B><A HREF="/cgi-bin/man/man2html?8+ntfsls">ntfsls</A></B>(8),
<B><A HREF="/cgi-bin/man/man2html?8+ntfsprogs">ntfsprogs</A></B>(8)
<P>
<HR>
<A NAME="index">&nbsp;</A><H2>Index</H2>
<DL>
<DT id="21"><A HREF="#lbAB">NAME</A><DD>
<DT id="22"><A HREF="#lbAC">SYNOPSIS</A><DD>
<DT id="23"><A HREF="#lbAD">DESCRIPTION</A><DD>
<DT id="24"><A HREF="#lbAE">OPTIONS</A><DD>
<DT id="25"><A HREF="#lbAF">EXAMPLES</A><DD>
<DT id="26"><A HREF="#lbAG">BUGS</A><DD>
<DT id="27"><A HREF="#lbAH">AUTHORS</A><DD>
<DT id="28"><A HREF="#lbAI">AVAILABILITY</A><DD>
<DT id="29"><A HREF="#lbAJ">SEE ALSO</A><DD>
</DL>
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