scrub

Scrub writes patterns on files or disk devices to make
retrieving the data more difficult.  It operates in one of three modes:

the special file corresponding to an entire disk is scrubbed
and all data on it is destroyed.
a regular file is scrubbed and only the data in the file
(and optionally its name in the directory entry) is destroyed.
a regular file is created, expanded until
the file system is full, then scrubbed as in 2).


          

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License: GPL-2.0
URL: https://code.google.com/p/diskscrub/