ntpq(1) on Linux
The text 191b21561717, as Debian 10 (Buster) shipped it.
standard NTP query program
Flags it lists
-
--authentication -
--command -
--debug -
--help -
--ipv4 -
--ipv6 -
--keyfile -
--logfile -
--numeric -
--peers -
--set-debug-level -
--units -
--version -
--wide -
--width -
-4 -
-6 -
-D -
-V -
-W -
-a -
-c -
-d -
-h -
-k -
-l -
-n -
-p -
-u -
-w