rngtest(1) on Linux
The text 49400ae2957d, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
Check the randomness of data using FIPS 140-2 tests
Flags it lists
-
--help -
--pipe -
--version -
-? -
-V -
-p