35 lines
819 B
Bash
Executable File
35 lines
819 B
Bash
Executable File
#!/bin/bash
|
|
|
|
# Requires amixer from the alsa-utils package
|
|
|
|
mod_vol_amixer () {
|
|
# Customizable configuration constants
|
|
local -r DEFAULT_PRE_LOW=' '
|
|
local -r DEFAULT_PRE_HI=' '
|
|
local -r DEFAULT_PRE_MUTE=' '
|
|
local -r DEFAULT_SUF='%'
|
|
|
|
local -r pre_low="${1-${DEFAULT_PRE_LOW}}"
|
|
local -r pre_hi="${2-${DEFAULT_PRE_HI}}"
|
|
local -r pre_mute="${3-${DEFAULT_PRE_MUTE}}"
|
|
local -r suf="${4-${DEFAULT_SUF}}"
|
|
|
|
local pre info stat vol
|
|
|
|
info="$(amixer get Master | tail -n 1)"
|
|
stat="$(sed -E 's/.*\[(.*)\]/\1/' <<< "${info}")"
|
|
vol="$(sed -E 's/.*\[(.*)%\].*/\1/' <<< "${info}")"
|
|
|
|
case "${stat}" in
|
|
on)
|
|
if [[ "${vol}" -lt 50 ]]; then pre="${pre_low}";
|
|
else pre="${pre_hi}"; fi
|
|
;;
|
|
*)
|
|
pre="${pre_mute}"
|
|
;;
|
|
esac
|
|
printf '%b%3d%b' "${pre}" "${vol}" "${suf}"
|
|
}
|
|
|