festival_client(1) on Linux
The text a95e855213d5, as Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it.
client access to festiva; text-to-speech server mode
Flags it lists
-
--async -
--aucommand -
--output -
--passwd -
--prolog -
--server -
--tts_mode -
--ttw -
--withlisp