NAME
  f3write, f3read - test real flash memory capacity
SYNOPSIS
  f3write [--start-at=NUM] <PATH>
  f3read  [--start-at=NUM] <PATH>
DESCRIPTION
  F3 (Fight Flash Fraud or Fight Fake Flash) tests the full capacity
  of a flash card (flash drive, flash disk, pendrive). It writes to the
  card and then checks if can read it. It will assure you haven't been
  sold a card with a smaller capacity than stated.

  When writing to flash drive, f3write fills the filesystem with 1GB
  files named N.fff, where N is a number (i.e. /[0-9]+/).

  WARNING: all data on the tested disk will be lost!!!
OPTIONS
  --start-at=NUM     Initial number to files names. Default value is 1.
EXAMPLE
  To write over a flash drive mounted at /media/TEST:

      $ f3write /media/TEST

  To read this flash drive:

      $ f3read /media/TEST
AUTHOR
  f3 was written by Digirati <michael@digirati.com.br>.
  This manual page was written by Joao Eriberto Mota Filho <eriberto@eriberto.pro.br> for the Debian project (but may be used by others).
