HomeHome  PortalPortal  FAQFAQ  SearchSearch  RegisterRegister  Log in  
Absolute deletion Fatelogo_small openFATE - openSUSE feature tracking
Latest topics
» Difference between 42.2 and 42.1
Absolute deletion Emptyby findoctr Thu Dec 15, 2016 7:53 pm

» openSUSE Leap 42.1 ?
Absolute deletion Emptyby findoctr Fri Feb 05, 2016 8:09 pm

» Happy Turkey Day
Absolute deletion Emptyby findoctr Thu Nov 26, 2015 1:45 pm

» Happy 4th of July!
Absolute deletion Emptyby bozo Sat Jul 04, 2015 12:56 pm

» It's been a while ...
Absolute deletion Emptyby bozo Mon Feb 23, 2015 8:34 pm

» Mondo chillers
Absolute deletion Emptyby bozo Wed Feb 18, 2015 5:11 am

IRC Channel
You can also find us on IRC's freenode.net as #suseunbound.


 Absolute deletion

Go down 

Posts : 248
Join date : 2010-02-23
Age : 55
Location : snow drift in minnesota

Absolute deletion Empty
PostSubject: Absolute deletion   Absolute deletion EmptyMon Mar 15, 2010 6:09 pm

Using rm to delete files is just begging people to skank around your disk to read the old data, which is no good if you really want your files to disappear forever. Fortunately for all of us, there's the shred command, which overwrites your file with new data multiple times before deleting it, which makes recovery absolutely impossible.
For example, if you wanted to be absolutely sure that the file passwords was removed, you would use this command:

shred -z -u passwords

That overwrites the file with random data 25 times, which is then followed by a final zero pass (-z) so that no one can tell you've shredded something, then removes it (-u).
The removal isn't enabled by default, because you can tell shred to work on entire partitions (eg shred /dev/hda1), in which case you probably don't want it removed

An expert is a man who tells you a simple thing in a confused way in such a fashion as to make you think the confusion is your own fault. 
Back to top Go down
Absolute deletion
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
SUSEUnbound :: Help Section :: Tips and Tweaks-
Jump to: