Home
Main website
Display Sidebar
Hide Ads
Recent Changes
View Source:
shred(1)
Edit
PageHistory
Diff
Info
LikePages
SHRED !!!SHRED NAME SYNOPSIS DESCRIPTION AUTHOR REPORTING BUGS COPYRIGHT SEE ALSO ---- !!NAME shred - delete a file securely, first overwriting it to hide its contents !!SYNOPSIS __shred__ [[''OPTIONS''] ''FILE'' [[...] !!DESCRIPTION Overwrite the specified FILE(s) repeatedly, in order to make it harder for even very expensive hardware probing to recover the data. __-f__, __--force__ change permissions to allow writing if necessary __-n__, __--iterations__=''N'' Overwrite N times instead of the default (25) __-s__, __--size__=''N'' shred this many bytes (suffixes like k, M, G accepted) __-u__, __--remove__ truncate and remove file after overwriting __-v__, __--verbose__ show progress __-x__, __--exact__ do not round file sizes up to the next full block __-z__, __--zero__ add a final overwrite with zeros to hide shredding - shred standard output __--help__ display this help and exit __--version__ print version information and exit Delete FILE(s) if __--remove__ (-u) 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 __--remove__ option. CAUTION: Note that shred relies on a very important assumption: that the filesystem overwrites data in place. This is the traditional way to do things, but many modern filesystem designs do not satisfy this assumption. The following are examples of filesystems on which shred is not effective: * log-structured or journaled filesystems, such as those supplied with AIX and Solaris (and JFS, ReiserFS, XFS, etc.) * filesystems that write redundant data and carry on even if some writes fail, such as RAID-based filesystems * filesystems that make snapshots, such as Network Appliance's NFS server * filesystems that cache in temporary locations, such as NFS version 3 clients * compressed filesystems !!AUTHOR Written by Colin Plumb. !!REPORTING BUGS Report bugs to !!COPYRIGHT Copyright 2001 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. !!SEE ALSO The full documentation for __shred__ is maintained as a Texinfo manual. If the __info__ and __shred__ programs are properly installed at your site, the command __info shred__ should give you access to the complete manual. ----
2 pages link to
shred(1)
:
rm(1)
Man1s
This page is a man page (or other imported legacy content). We are unable to automatically determine the license status of this page.
