polyglot(6) on Linux
The text 990c422138fb, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it.
Winboard protocol to UCI protocol adapter - book engine for Polyglot books - a collection of utilities for creating and analyzing opening books - a utility for analyzing epd files - a perft counter
Flags it lists
-
-color -
-ec -
-ed -
-en -
-exact -
-in1 -
-in2 -
-noini -
-only-black -
-only-white -
-pg -
-uci -
-uniform