Как получить ключевое слово Emacs в Firefox с помощью Mate?

Это улучшенная версия скрипта htorque.

Это работает для меня 14.04. Дайте мне знать, если он работает с 16.04 или новее.

Он требует установки libnotify-bin.

#!/bin/sh
# Adjust the volume, play a sound, and show a notification.
#
# Replacement for default Ubuntu volume adjustment behaviour.
#
# Based on https://askubuntu.com/a/12769/301745

command=""
device="pulse"
display_volume=0
icon_name="error"
increment=5
mixer="Master"
usage="usage: $0 [-d device] [-i increment] [-m mixer] (up|down|mute)"

# For compatibility with SSH sessions.
export DISPLAY=:0

_amixer(){
    # amixer alias
    local set_get="$1"
    shift
    amixer -D "$device" "$set_get" "$mixer" "$@"
}

_get_display_volume(){
    # grep alias
    grep -Pom 1 '(?<=\[)[0-9]+(?=%\])'
}

while getopts d:hi:m: opt; do
    case "$opt" in
        d)
            device="$OPTARG"
            ;;
        h)
            echo "$usage"
            exit 0
            ;;
        i)
            increment="$OPTARG"
            ;;
        m)
            mixer="$OPTARG"
            ;;
        ?)
            echo "$usage"
            exit 1
            ;;
    esac
done

shift "$(($OPTIND - 1))"
command="$1"

case "$command" in
    down)
        display_volume="$(
            _amixer set "$increment%-" unmute |
                _get_display_volume
            )"
        ;;
    mute)
        if _amixer get | grep -q "\[on\]"; then
            display_volume=0
            icon_name="notification-audio-volume-muted"
            _amixer set mute > /dev/null
        else
            display_volume="$(
                _amixer set unmute |
                    _get_display_volume
                )"
        fi
        ;;
    up)
        display_volume="$(
            _amixer set "$increment%+" unmute |
                _get_display_volume
            )"
        ;;
    *)
        echo "$usage"
        exit 1
        ;;
esac

if [ "$icon_name" = "error" ]; then
    if [ "$display_volume" = "0" ]; then
        icon_name="notification-audio-volume-off"
    elif [ "$display_volume" -lt "33" ]; then
        icon_name="notification-audio-volume-low"
    elif [ "$display_volume" -lt "67" ]; then
        icon_name="notification-audio-volume-medium"
    else
        icon_name="notification-audio-volume-high"
    fi

    # In a subshell in the background to minimize latency.
    ( canberra-gtk-play --id=audio-volume-change & )
fi

notify-send "Volume: $display_volume%" -i "$icon_name" -h "string:synchronous:volume" -h "int:value:$display_volume"