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Erase free disk space from the command line
As UNIX SysAdmin, I don't think this makes any sense at all.
Erase free disk space from the command line
Not only is this not a good idea, it doesn't entirely work as advertised. Realize that changes to files are often not written to disk immediately. Instead, they are held in memory (cached) and queued for writing to disk. So, when your cat command dies due to insufficient space, it's likely that some of the writes have not completed. When the file is removed, those writes can be deleted from the queue of pending writes. Consequently, some of the disk blocks will never be overwritten.
Erase free disk space from the command line
"Do you work for the NSA? Didn't think so. You don't need to 'zero' your unused disk space."
Erase free disk space from the command line
some of us do. given, this isn't the best way to go about it, it would help prevent some data recovery. |
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