1NWIPE(24)                        User Commands                       NWIPE(24)
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NAME

6       nwipe - securely erase disks
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SYNOPSIS

9       nwipe [options] [device1] [device2] ...
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DESCRIPTION

12       nwipe  is  a  command that will securely erase disks using a variety of
13       recognised methods.  It is a fork of the dwipe command used by  Darik's
14       Boot and Nuke (dban).  nwipe is included with partedmagic if you want a
15       quick and easy bootable CD version.  nwipe was created out of a need to
16       run  the  DBAN dwipe command outside of DBAN, in order to allow its use
17       with any host distribution, thus giving better hardware support.  It is
18       essentially the same as dwipe, with a few changes:
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20       - pthreads is used instead of fork
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22       - The parted library is used to detect drives
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24       - The code is designed to be compiled with gcc
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26       - SIGUSR1 can be used to log the stats of the current wipe
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OPTIONS

30       -V, --version
31              Prints the version number
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33       -h, --help
34              Prints a help summary
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36       --autonuke
37              If  no  devices  have been specified on the command line, starts
38              wiping all devices immediately. If devices have been  specified,
39              starts wiping only those specified devices immediately.
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41       --autopoweroff
42              Power  off  system on completion of wipe delayed for one minute.
43              During this one minute delay you can abort the shutdown by  typ‐
44              ing sudo shutdown -c
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46       --sync=NUM
47              Will perform a syn after NUM writes (default: 100000)
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49              0    - fdatasync after the disk is completely written
50                     fdatasync errors not detected until completion.
51                     0 is not recommended as disk errors may cause nwipe
52                     to appear to hang
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54              1    - fdatasync after every write
55                     Warning: Lower values will reduce wipe speeds.
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57              1000 - fdatasync after 1000 writes
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59       --noblank
60              Do  not  perform the final blanking pass after the wipe (default
61              is to blank, except when the method is RCMP TSSIT OPS-II).
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63       --nowait
64              Do not wait for a key before exiting (default is to wait).
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66       --nosignals
67              Do not allow signals to interrupt a wipe (default is to allow).
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69       --nousb
70              Do not show or wipe any USB devices, whether in GUI, --nogui  or
71              autonuke  mode. (default is to allow USB devices to be shown and
72              wiped).
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74       --nogui
75              Do not show the GUI interface. Can only be  used  with  the  au‐
76              tonuke  option.  Nowait option is automatically invoked with the
77              nogui option.  SIGUSR1 can be used to retrieve the current  wip‐
78              ing statistics.
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80       -v, --verbose
81              Log more messages, useful for debugging.
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83       --verify=TYPE
84              Whether to perform verification of erasure (default: last)
85
86              off   - Do not verify
87
88              last  - Verify after the last pass
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90              all   - Verify every pass
91
92              Please  mind  that  HMG  IS5  enhanced  always verifies the last
93              (PRNG) pass regardless of this option.
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95       -m, --method=METHOD
96              The wiping method (default: dodshort).
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98              dod522022m / dod       - 7 pass DOD 5220.22-M method
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100              dodshort / dod3pass    - 3 pass DOD method
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102              gutmann                - Peter Gutmann's Algorithm
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104              ops2                   - RCMP TSSIT OPS-II
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106              random / prng / stream - PRNG Stream
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108              zero / quick           - Overwrite with zeros 0x00
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110              one                    - Overwrite with ones 0xFF
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112              verify_zero            - Verifies disk is zero filled
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114              verify_one             - Verifies disk is 0xFF filled
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116              is5enh                 - HMG IS5 enhanced
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118       -l, --logfile=FILE
119              Filename to log to. Default is STDOUT
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121       -P, --PDFreportpath=DIR
122              Directory to write the PDF nwipe reports/certificates  to.   De‐
123              faults  to  ".".  If DIR is set to noPDF no report PDF files are
124              written.
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126       -p, --prng=METHOD
127              PRNG option (mersenne|twister|isaac|isaac64)
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129       -q, --quiet
130              Anonymize serial numbers, Gui & logs display:
131               XXXXXXXX = S/N obtained & anonymized.
132               ???????? = S/N not available.
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134       -r, --rounds=NUM
135              Number of times to wipe the device  using  the  selected  method
136              (default: 1)
137
138       -e, --exclude=DEVICES
139              Up to ten comma separated devices to be excluded, examples:
140               --exclude=/dev/sdc
141               --exclude=/dev/sdc,/dev/sdd
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BUGS

144       Please see the GitHub site for the latest list (https://github.com/mar‐
145       tijnvanbrummelen/nwipe/issues)
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AUTHOR

148       Nwipe is developed by Martijn van Brummelen <github@brumit.nl>
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SEE ALSO

151       shred(1), dwipe(1), dd(1), dcfldd(1), dc3dd(1)
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155nwipe version 0.35               October 2023                        NWIPE(24)