.\" scrub-files - securely erase files by filling with random data first.
.\" Copyright (c) 2010 David Sugar <dyfet@gnutelephony.org>
.\"
.\" This manual page is free software; you can redistribute it and/or modify
.\" it under the terms of the GNU General Public License as published by
.\" the Free Software Foundation; either version 3 of the License, or
.\" (at your option) any later version.
.\"
.\" This program is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
.\" GNU General Public License for more details.
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.\" along with this program; if not, write to the Free Software
.\" Foundation, Inc.,59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
.\"
.\" This manual page is written especially for Debian GNU/Linux.
.\"
.TH scrub-files "1" "January 2010" "GNU uCommon" "GNU Telephony"
.SH NAME
scrub\-files \- securely erase files by filling with random data first.
.SH SYNOPSIS
.B scrub
.RI [ options ]
.I paths...
.br
.SH DESCRIPTION
This command is used to securely erase files.  This is accomplished by
filling the file with random data in pre-sized chunks.  Multiple passes
of random data may also be used.  The pre-sized chunks are used to remove
information about exact original file size.  Other options include random
renaming of the original file before deletion and the use of truncation to
break down meta-data on what blocks in the file system were originally
associated with a securely deleted file.  This is specifically intended to
make it harder to perform forensic analysis on securely erased files.
.SH OPTIONS
.TP
.BI \-\-blocksize " size"
Set the default block size (in 1 k increments) for scrub\-files to use when
writing random data.  This effects both the final file length, which will
be aligned to the specified size, and the way the truncate option decomposes
files.  The default is 1k.
.TP
.B \-\-follow
Dereference and follow symlinks, erasing the target file.
.TP
.BI \-\-passes= count
The number of passes used when writing random data.  The default is 1 pass.
.TP
.B \-\-recursive
If argument is a directory, recursively scan directory and any subdirectory
contents as arguments.
.TP
.B \-\-rename
Rename the file randomly before deletion to clear persistant inode data.
.TP
.B \-\-truncate
Decompose the file through truncation to break down file system page maps.
.TP
.B \-\-verbose
Display each file being processed to the console.
.TP
\fB--help\fR
Outputs help screen for the user.
.SH AUTHOR
.B scrub\-files
was written by David Sugar <dyfet@gnutelephony.org>.
.SH "REPORTING BUGS"
Report bugs to bug-commoncpp@gnu.org.
.SH COPYRIGHT
Copyright \(co 2010 David Sugar, Tycho Softworks.
.br
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.