1NTFSWIPE(8)                 System Manager's Manual                NTFSWIPE(8)
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NAME

6       ntfswipe - overwrite unused space on an NTFS volume
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SYNOPSIS

9       ntfswipe [options] device
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DESCRIPTION

12       ntfswipe  clears all or part of unused space on an NTFS volume by over‐
13       writing with zeroes or random bytes.
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OPTIONS

16       Below is a summary of all the options that  ntfswipe  accepts.   Nearly
17       all options have two equivalent names.  The short name is preceded by -
18       and the long name is preceded by --.  Any single letter  options,  that
19       don't  take  an  argument,  can be combined into a single command, e.g.
20       -fv is equivalent to -f -v.  Long named options can be  abbreviated  to
21       any unique prefix of their name.
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23       -a, --all
24              Wipe  all  unused  space. This may take significant time. If the
25              option --unused-fast (or -U) is also present, the faster  wiping
26              method is used.
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28       -b, --bytes BYTE-LIST
29              Define the allowed replacement bytes which are drawn randomly to
30              overwrite the unused space. BYTE-LIST is a comma-separated  list
31              of values in range 0-255 expressed in octal, decimal or hexadec‐
32              imal base.
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34       -c, --count NUM
35              Define the number of times the unused space is to  be  overwrit‐
36              ten.  If  both options --bytes and --count are set, the space is
37              repeatedly overwritten this number of times by each of the  val‐
38              ues in the list.
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40       -d, --directory
41              Wipe  all  the  directory  indexes,  which  may contain names of
42              deleted files.
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44       -f, --force
45              This will override some sensible defaults, such as not  using  a
46              mounted volume.  Use this option with caution.
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48       -h, --help
49              Show a list of options with a brief description of each one.
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51       -i, --info
52              Display details about unused space, without wiping anything.
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54       -l, --logfile
55              Overwrite the logfile (update journal).
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57       -m, --mft
58              Overwrite  the  unused  space in the MFT (main file table, which
59              contains the file names, and the contents of short files).
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61       -n, --no-action
62              Executes the wiping process without writing to device.
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64       -p, --pagefile
65              Overwrite the Windows swap space.
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67       -q, --quiet
68              Suppress some debug/warning/error messages.
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70       -s, --undel
71              Overwrite the space which had been allocated to a file which has
72              been  deleted  recently and is still undeletable. This option is
73              not compatible with --bytes and the replacement bytes are random
74              ones or taken from a standard list.
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76       -t, --tails
77              Overwrite the space at the end of files which is unused, but al‐
78              located because the allocations are always done  by  full  clus‐
79              ters.
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81       -u, --unused
82              Overwrite the space which is currently not allocated to any file
83              (but may have been used in the past).
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85       -U, --unused-fast
86              Overwrite the space which is  currently  not  allocated  to  any
87              file, trying not to overwrite the space not written to since the
88              previous wiping.
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90       -v, --verbose
91              Display more debug/warning/error messages. This  option  may  be
92              used twice to display even more messages.
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94       -V, --version
95              Show the version number, copyright and license of ntfswipe.
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EXAMPLES

98       Wipe out all unused space in an NTFS volume.
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100              ntfswipe -a /dev/sda1
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102       Wipe out all deleted file names from an NTFS volume.
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104              ntfswipe -dms /dev/sda1
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BUGS

108       There  are  no  known problems with ntfswipe.  If you find a bug please
109       send an email describing the problem to the development team:
110       ntfs-3g-devel@lists.sf.net
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AUTHORS

113       ntfswipe was written by Richard Russon,  Anton  Altaparmakov  and  Yura
114       Pakhuchiy.  It was ported to ntfs-3g by Erik Larsson.
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AVAILABILITY

117       ntfswipe is part of the ntfs-3g package and is available from:
118       https://github.com/tuxera/ntfs-3g/wiki/
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SEE ALSO

121       ntfs-3g(8), ntfsls(8), ntfsprogs(8)
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125ntfs-3g 2022.10.3                  June 2014                       NTFSWIPE(8)
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