free_rg(1) on Linux
The text 9211ee58a4f3, as Debian 12 (Bookworm) shipped it.
manual page for free_rg 0.9.0
Flags it lists
-
--format -
--help -
--output -
--unit -
--verbose -
--version -
-V -
-f -
-h -
-o -
-u -
-v