alsactl(1) on Linux
The text b2b436266523, as Debian 11 (Bullseye) shipped it.
advanced controls for ALSA soundcard driver
Flags it lists
-
--background -
--debug -
--env -
--file -
--force -
--help -
--ignore -
--initfile -
--lock -
--lock-state-file -
--nice -
--no-init-fallback -
--no-lock -
--no-ucm -
--pedantic -
--period -
--pid-file -
--remove -
--runstate -
--sched-idle -
--syslog -
--ucm-defaults -
--version -
-D -
-E -
-F -
-I -
-L -
-O -
-P -
-R -
-U -
-b -
-c -
-d -
-e -
-f -
-g -
-h -
-i -
-l -
-n -
-p -
-r -
-s -
-v