Toggle Webcam on off

gistfile1.txt

#!/usr/bin/env bash

# enable / disable all UVC devices/cameras
# No arguments - auto‑toggle based on whether the uvcvideo module is loaded
# on = force load the driver
# off = force unload the driver

if [[ -z "$DISPLAY" ]]; then
    export DISPLAY=:0
fi

ACTION="$1"

if [[ -z "$ACTION" ]]; then
    # Toggle: if the module is exists then unload it, else load it
    if lsmod | grep -q '^uvcvideo'; then
        ACTION="off"
    else
        ACTION="on"
    fi
fi

case "$ACTION" in
    off)
        sudo modprobe -r uvcvideo && \
            echo "All UVC cameras disabled" && \
            play /usr/share/mint-artwork/sounds/unplug.oga 2>/dev/null & \
            notify-send "Turning UVC Cameras Off..."
        ;;

    on|*)
        sudo modprobe uvcvideo && \
            echo "All UVC cameras enabled" && \
            play /usr/share/mint-artwork/sounds/plug.oga 2>/dev/null & \
            notify-send "Turning UVC Cameras On..."
        ;;
esac