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diff --git a/man/shred.1 b/man/shred.1 deleted file mode 100644 index 7115829..0000000 --- a/man/shred.1 +++ /dev/null @@ -1,106 +0,0 @@ -.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.35. -.TH SHRED "1" "March 2007" "GNU coreutils 6.9" "User Commands" -.SH NAME -shred \- overwrite a file to hide its contents, and optionally delete it -.SH SYNOPSIS -.B shred -[\fIOPTIONS\fR] \fIFILE \fR[...] -.SH DESCRIPTION -.\" Add any additional description here -.PP -Overwrite the specified FILE(s) repeatedly, in order to make it harder -for even very expensive hardware probing to recover the data. -.PP -Mandatory arguments to long options are mandatory for short options too. -.TP -\fB\-f\fR, \fB\-\-force\fR -change permissions to allow writing if necessary -.TP -\fB\-n\fR, \fB\-\-iterations\fR=\fIN\fR -Overwrite N times instead of the default (25) -.TP -\fB\-\-random\-source\fR=\fIFILE\fR -get random bytes from FILE (default /dev/urandom) -.TP -\fB\-s\fR, \fB\-\-size\fR=\fIN\fR -shred this many bytes (suffixes like K, M, G accepted) -.TP -\fB\-u\fR, \fB\-\-remove\fR -truncate and remove file after overwriting -.TP -\fB\-v\fR, \fB\-\-verbose\fR -show progress -.TP -\fB\-x\fR, \fB\-\-exact\fR -do not round file sizes up to the next full block; -.IP -this is the default for non\-regular files -.TP -\fB\-z\fR, \fB\-\-zero\fR -add a final overwrite with zeros to hide shredding -.TP -\fB\-\-help\fR -display this help and exit -.TP -\fB\-\-version\fR -output version information and exit -.PP -If FILE is \-, shred standard output. -.PP -Delete FILE(s) if \fB\-\-remove\fR (\fB\-u\fR) is specified. The default is not to remove -the files because it is common to operate on device files like /dev/hda, -and those files usually should not be removed. When operating on regular -files, most people use the \fB\-\-remove\fR option. -.PP -CAUTION: Note that shred relies on a very important assumption: -that the file system overwrites data in place. This is the traditional -way to do things, but many modern file system designs do not satisfy this -assumption. The following are examples of file systems on which shred is -not effective, or is not guaranteed to be effective in all file system modes: -.PP -* log\-structured or journaled file systems, such as those supplied with -AIX and Solaris (and JFS, ReiserFS, XFS, Ext3, etc.) -.PP -* file systems that write redundant data and carry on even if some writes -fail, such as RAID\-based file systems -.PP -* file systems that make snapshots, such as Network Appliance's NFS server -.PP -* file systems that cache in temporary locations, such as NFS -version 3 clients -.PP -* compressed file systems -.PP -In the case of ext3 file systems, the above disclaimer applies -(and shred is thus of limited effectiveness) only in data=journal mode, -which journals file data in addition to just metadata. In both the -data=ordered (default) and data=writeback modes, shred works as usual. -Ext3 journaling modes can be changed by adding the data=something option -to the mount options for a particular file system in the /etc/fstab file, -as documented in the mount man page (man mount). -.PP -In addition, file system backups and remote mirrors may contain copies -of the file that cannot be removed, and that will allow a shredded file -to be recovered later. -.SH AUTHOR -Written by Colin Plumb. -.SH "REPORTING BUGS" -Report bugs to <bug\-coreutils@gnu.org>. -.SH COPYRIGHT -Copyright \(co 2007 Free Software Foundation, Inc. -.br -This is free software. You may redistribute copies of it under the terms of -the GNU General Public License <http://www.gnu.org/licenses/gpl.html>. -There is NO WARRANTY, to the extent permitted by law. -.SH "SEE ALSO" -The full documentation for -.B shred -is maintained as a Texinfo manual. If the -.B info -and -.B shred -programs are properly installed at your site, the command -.IP -.B info shred -.PP -should give you access to the complete manual. |