amixer(1) on Linux
The text 96a42c0d837c, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
command-line mixer for ALSA soundcard driver
Flags it lists
-
--stdin -
-D -
-M -
-R -
-c -
-h -
-q -
-s