| .\" zerofill - clear unused disk space and blank devices. |
| .\" 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. |
| .\" |
| .\" You should have received a copy of the GNU General Public License |
| .\" 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 zerofill "1" "January 2010" "GNU uCommon" "GNU Telephony" |
| .SH NAME |
| zerofill \- clear unused disk space and blank devices. |
| .SH SYNOPSIS |
| .B zerofill |
| .RI [ options ] |
| .RI [ devices ] |
| .I ... |
| .br |
| .SH DESCRIPTION |
| This command is a relative of nullfile. Like nullfile, it can be used |
| to write all unused disk space with '0', thereby making file systems that |
| are stored on virtual machines easier to pack. In addition, zerofill can |
| fill unused disk space with random data before zeroing, which can be useful |
| to remove forensic trace of deleted files. Finally, zerofile can be told |
| to operate on and zero (erase) complete disk devices. |
| .SH OPTIONS |
| .TP |
| .BI \-\-random= count |
| Number of passes to use writing random data before wiping data. |
| .TP |
| .B \-\-help |
| Outputs help screen for the user. |
| .SH AUTHOR |
| .B zerofill |
| 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. |
| |
| |