WIPE(1) General Commands Manual WIPE(1) (NAME) wipe - (SYNOPSIS) wipe [-ucwsiIhfFdDnNvVzZrRtTkKaAeE] [-B(count)] [-S(size)] [-C(size)] [-o[size] -O] [-l[0-2]] [-x[1-32] -X] [-p(1-32)] [-b(0-255)] [files] (DEFAULT) wipe -ZdNTVEAkO -S512 -C4096 -l1 -x1 -p1 (DESCRIPTION) Wipe . . (write barrier) . Wipe fdatasync(2) ( fsync(2)) fsync(2) O_DSYNC O_SYNC . wipe . (drive) (write cache flush) (write cache disabling) . SCSI (ordered command tags) (force media access) mode page 8 . IDE/ATA . . . linux (mandatory file locks) mount "mand" (linux/Documentation/mandatory.txt ). Wipe (plaintext) . PGP GNU Privacy Guard . PGP GPG . . Wipe . Wipe /dev/urandom /dev/random . Mersenne Twister PRNG . MT : http://www.math.keio.ac.jp/~matumoto/emt.html ( DRAM) USENIX Peter Gutmann : http://www.cs.auckland.ac.nz/~pgut001/secure_del.html (OPTIONS) -h . -u (usage) - . -c (copywrite) . -w (warranty) . -i (interactive) - . -I . -f . -r or -R (recursion) - . -s (silent) - . -V (verbose) - (wipe -h ). -v - . -e and -E (-e) fdatasync() ( ) . (-E) wipe fdatasync() . -d and -D (-d) (-D) . -n and -N (-n) (-N) fifo . -k and -K (-k) (-K) . -z - . -Z - -z. -t and -T (-t) (-T) (static passes). -a and -A (-a) (-A). -o and -O [size] stdout (-o) (-O). wipe (tape drives) : wipe -za -o | buffer > /dev/nst0 : wipe -To | dd count=size of=blkdev MT PRNG : wipe -To10240 -x1 > prand stdout . -B . -S . -C (chunk size) - . -l : : PRNG (seed) . : PRNG . : PRNG . -x - - * (-p). -X . -p (loop passes) - . -b - . (FILES) /dev/urandom Wipe . /dev/random /dev/urandom Wipe . (DIAGNOSTICS) errno . . (BUGS) Wipe (log structured file systems) . (symlink races) . wipe . (NOTES) . . VXA mt-st linux 0 () wipe 64k . : mt-st setblk 0 mt-st compression 0 wipe -C64 /dev/st0 (ALTERNATIVES) : "wipe" Berke Durak sterilize Colin Plumb . srm Todd Burgess sunsite/metalab : ftp://metalab.unc.edu/pub/Linux/system/filesystems (SEE ALSO) /usr/doc/wipe/README (AUTHORS) Wipe Copyright (C) 1998-2009 Thomas M. Vier, Jr. Mersenne Twister PRNG module Copyright (C) 1997 Makoto Matsumoto and Takuji Nishimura WIPE(1)