volume.sh

#!/bin/sh

## Put it into /usr/bin as "sound" so you can type snazzy commands like "sound up" and "sound down"

get_active_sink() {
    local is_running=$(pactl list sinks | grep RUNNING); # empty if nothing is playing

    if [ -z $is_running ]; then # nothing is playing; get the highest-number sink (the one which was plugged in last, which you're most likely to be using.)
        local index_line_no=$(pactl list sinks | tac | awk '/State: SUSPENDED/{print NR + 1};')
        IFS=' ' read -ra line_no_arr <<< "$index_line_no"
        local line_number=${line_no_arr[0]}
        local index_line=$(pactl list sinks | tac | sed -n "$line_number"p);
    else # something is playing, get that sink number
        local line_number=$(pactl list sinks | awk '/State: RUNNING/{print NR - 1}')
        local index_line=$(pactl list sinks | sed -n "$line_number"p);
    fi
    IFS=' ' read -ra arr <<< "$index_line"
    echo ${arr[1]} | sed 's/#//g'
}

get_vol_string() {
    local volume='vol at: '$(pamixer --sink $(get_active_sink) --get-volume)'%'

    if [ $(pamixer --sink $(get_active_sink) --get-mute) == 'true' ]; then
        echo '[muted]'$volume
    else
        echo $volume
    fi
}

if [ -z $1 ]; then
    get_vol_string;
elif [ $1 == 'up' ]; then
    echo 'volup';
    pamixer --sink $(get_active_sink) -i 5 --allow-boost
elif [ $1 == 'down' ]; then
    echo 'voldown';
    pamixer --sink $(get_active_sink) -d 5
elif [ $1 == 'mute' ]; then
    echo 'mute toggled' ;
    pamixer --sink $(get_active_sink) --toggle-mute
elif [ $1 == 'muteon' ]; then
    echo 'muting' ;
    pamixer --sink $(get_active_sink) -m
elif [ $1 == 'muteoff' ]; then
    echo 'unmuting' ;
    pamixer --sink $(get_active_sink) -u
fi