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