rngd(8) on Linux
The text 25f70ca63f1a, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
Check and feed random data from an entropy source (e.g. hardware RNG device) to an entropy sink (e.g. kernel entropy pool)
Flags it lists
-
--background -
--foreground -
--help -
--hrng -
--rng-quality -
--timeout -
--version -
-? -
-Q -
-V -
-b -
-f