1zerofill(1)                      GNU Telephony                     zerofill(1)
2
3
4

NAME

6       zerofill - clear unused disk space and blank devices.
7

SYNOPSIS

9       zerofill [options] [devices] ...
10

DESCRIPTION

12       This  command is a relative of nullfile.  Like nullfile, it can be used
13       to write all unused disk space with '0', thereby  making  file  systems
14       that are stored on virtual machines easier to pack.  In addition, zero‐
15       fill can fill unused disk space with random data before zeroing,  which
16       can  be  useful  to  remove  forensic trace of deleted files.  Finally,
17       zerofile can be told to operate  on  and  zero  (erase)  complete  disk
18       devices.
19

OPTIONS

21       --random=count
22              Number of passes to use writing random data before wiping data.
23
24       --help Outputs help screen for the user.
25

AUTHOR

27       zerofill was written by David Sugar <dyfet@gnutelephony.org>.
28

REPORTING BUGS

30       Report bugs to bug-commoncpp@gnu.org or bugs@gnutelephony.org.
31

33       Copyright © 2010-2014 David Sugar, Tycho Softworks.
34       This is free software; see the source for copying conditions.  There is
35       NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A  PARTICULAR
36       PURPOSE.
37
38
39
40
41
42GNU uCommon                      January 2010                      zerofill(1)
Impressum