Planimeter(1) on Linux
The text f21778ad76d6, as Debian 10 (Buster) shipped it.
Flags it lists
-
--comment-delimiter -
--help -
--input-file -
--input-string -
--line-separator -
--output-file -
--version -
-E -
-G -
-Q -
-R -
-h -
-l -
-p -
-r -
-s -
-w