Add: livecd sound setup script
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239
archlive/airootfs/usr/local/bin/livecd-sound
Executable file
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archlive/airootfs/usr/local/bin/livecd-sound
Executable file
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#!/usr/bin/env bash
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#
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# SPDX-License-Identifier: GPL-3.0-or-later
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usage() {
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cat <<-_EOF_
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live cd sound helper script.
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Usage: livecdsound [OPTION]
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OPTIONS
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-u, --unmute unmute all sound cards
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-p, --pick select a card for speetch output
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-h, --help Show this usage message
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_EOF_
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}
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bugout() {
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printf "/usr/local/bin/livecdsound: programming error"
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stat_fail
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}
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echo_card_indices() {
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if [[ -f /proc/asound/cards ]]; then
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sed -n -e's/^[[:space:]]*\([0-7]\)[[:space:]].*/\1/p' /proc/asound/cards
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fi
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}
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# The following functions try to set many controls.
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# No card has all the controls and so some of the attempts are bound to fail.
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# Because of this, the functions can't return useful status values.
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# $1 <card id>
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# $2 <control>
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# $3 <level>
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unmute_and_set_level() {
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[[ -n "$3" && -n "$2" && -n "$1" ]] || bugout
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systemd-cat -t "livecdsound" printf "Setting: %s on card: %s to %s\n" "$2" "$1" "$3"
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systemd-cat -t "livecdsound" amixer -c "$1" set "$2" "$3" unmute
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return 0
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}
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# $1 <card id>
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# $2 <control>
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mute_and_zero_level() {
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[[ -n "$1" && -n "$2" ]] || bugout
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systemd-cat -t "livecdsound" printf "Muting control: %s on card: %s\n" "$2" "$1"
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systemd-cat -t "livecdsound" amixer -c "$1" set "$2" "0%" mute
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return 0
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}
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# $1 <card ID>
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# $2 <control>
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# $3 "on" | "off"
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switch_control() {
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[[ -n "$3" && -n "$1" ]] || bugout
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systemd-cat -t "livecdsound" printf "Switching control: %s on card: %s to %s\n" "$2" "$1" "$3"
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systemd-cat -t "livecdsound" amixer -c "$1" set "$2" "$3"
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return 0
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}
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# $1 <card ID>
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sanify_levels_on_card() {
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unmute_and_set_level "$1" "Front" "80%"
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unmute_and_set_level "$1" "Master" "80%"
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unmute_and_set_level "$1" "Master Mono" "80%"
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unmute_and_set_level "$1" "Master Digital" "80%" # E.g., cs4237B
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unmute_and_set_level "$1" "Playback" "80%"
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unmute_and_set_level "$1" "Headphone" "100%"
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unmute_and_set_level "$1" "PCM" "80%"
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unmute_and_set_level "$1" "PCM,1" "80%" # E.g., ess1969
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unmute_and_set_level "$1" "DAC" "80%" # E.g., envy24, cs46xx
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unmute_and_set_level "$1" "DAC,0" "80%" # E.g., envy24
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unmute_and_set_level "$1" "DAC,1" "80%" # E.g., envy24
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unmute_and_set_level "$1" "Synth" "80%"
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unmute_and_set_level "$1" "CD" "80%"
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unmute_and_set_level "$1" "PC Speaker" "100%"
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mute_and_zero_level "$1" "Mic"
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mute_and_zero_level "$1" "IEC958" # Ubuntu #19648
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# Intel P4P800-MX
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switch_control "$1" "Master Playback Switch" on
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switch_control "$1" "Master Surround" on
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# Trident/YMFPCI/emu10k1:
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unmute_and_set_level "$1" "Wave" "80%"
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unmute_and_set_level "$1" "Music" "80%"
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unmute_and_set_level "$1" "AC97" "80%"
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# DRC:
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unmute_and_set_level "$1" "Dynamic Range Compression" "80%"
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# Required for HDA Intel (hda-intel):
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unmute_and_set_level "$1" "Front" "80%"
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# Required for SB Live 7.1/24-bit (ca0106):
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unmute_and_set_level "$1" "Analog Front" "80%"
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# Required at least for Via 823x hardware on DFI K8M800-MLVF Motherboard
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switch_control "$1" "IEC958 Capture Monitor" off
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# Required for hardware allowing toggles for AC97 through IEC958,
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# valid values are 0, 1, 2, 3. Needs to be set to 0 for PCM1.
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unmute_and_set_level "$1" "IEC958 Playback AC97-SPSA" "0"
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# Required for newer Via hardware
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unmute_and_set_level "$1" "VIA DXS,0" "80%"
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unmute_and_set_level "$1" "VIA DXS,1" "80%"
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unmute_and_set_level "$1" "VIA DXS,2" "80%"
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unmute_and_set_level "$1" "VIA DXS,3" "80%"
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# Required on some notebooks with ICH4:
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switch_control "$1" "Headphone Jack Sense" off
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switch_control "$1" "Line Jack Sense" off
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# Some machines need one or more of these to be on;
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# others need one or more of these to be off:
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switch_control "$1" "Audigy Analog/Digital Output Jack" on
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switch_control "$1" "SB Live Analog/Digital Output Jack" on
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# D1984 -- Thinkpad T61/X61
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switch_control "$1" "Speaker" on
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switch_control "$1" "Headphone" on
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# HDA-Intel w/ "Digital" capture mixer (See Ubuntu #193823)
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unmute_and_set_level "$1" "Digital" "80%"
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return 0
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}
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# $1 <card ID> | "all"
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sanify_levels() {
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local ttsdml_returnstatus=0
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local card
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case "$1" in
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all)
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for card in $(echo_card_indices); do
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sanify_levels_on_card "$card" || ttsdml_returnstatus=1
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done
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;;
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*)
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sanify_levels_on_card "$1" || ttsdml_returnstatus=1
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;;
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esac
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return "$ttsdml_returnstatus"
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}
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# List all cards that *should* be usable for PCM audio. In my experience,
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# the console speaker (handled by the pcsp driver) isn't a suitable playback
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# device, so we'll exclude it.
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list_non_pcsp_cards() {
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for card in $(echo_card_indices); do
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local cardfile="/proc/asound/card${card}/id"
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if [[ -r "$cardfile" && -f "$cardfile" && "$(cat "$cardfile")" != pcsp ]]; then
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echo "$card"
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fi
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done
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}
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# Properly initialize the sound card so that we have audio at boot.
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unmute_all_cards() {
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sanify_levels all
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}
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is_numeric() {
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local str="$1"
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[[ "$str" =~ ^[0-9]+$ ]]
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}
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set_default_card() {
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local card="$1"
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sed -e "s/%card%/$card/g" </usr/local/share/livecd-sound/asound.conf.in \
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>/etc/asound.conf
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}
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play_on_card() {
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local card="$1" file="$2"
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aplay -q "-Dplughw:$card,0" "$file"
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}
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# If there are multiple usable sound cards, prompt the user to choose one,
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# using auditory feedback.
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pick_a_card() {
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set -f
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usable_cards="$(list_non_pcsp_cards)"
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num_usable_cards="$(wc -w <<<"$usable_cards")"
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if (( num_usable_cards == 1 )); then
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systemd-cat -t "livecdsound" printf "Only one sound card is detected\n"
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exit 0
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fi
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systemd-cat -t "livecdsound" printf "multiple sound cards detected\n"
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for card in "${usable_cards[@]}"; do
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if ! is_numeric "$card"; then
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continue
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fi
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play_on_card "$card" /usr/share/livecd-sounds/pick-a-card.wav &
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done
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wait
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sleep 1
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for card in "${usable_cards[@]}"; do
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if ! is_numeric "$card"; then
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continue
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fi
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play_on_card "$card" /usr/share/livecd-sounds/beep.wav
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if read -r -t 10; then
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systemd-cat -t "livecdsound" printf "Selecting %s sound card as default\n" "$card"
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set_default_card "$card"
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break
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fi
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done
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}
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if (( $# == 0 )); then
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echo "error: No argument passed."
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exit 1
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fi
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while [[ "${1}" != "" ]]; do
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case ${1} in
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-h|--help)
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usage
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exit
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;;
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-u|--unmute)
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systemd-cat -t "livecdsound" printf "Unmuting all cards"
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unmute_all_cards
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;;
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-p|--pick)
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pick_a_card
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;;
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*)
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echo "error: Unsupported argument"
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usage
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exit 1
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;;
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esac
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shift
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done
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