A simple BASH script for automatically run manual Flash Player update on Linux

updateFlashPlayer.sh

#!/usr/bin/env bash

# @Author: HorlogeSkynet
# @Created: 2017-05-21
# @Updated: 2020-04-14
# @Brief: A simple BASH script for automatically update Flash Player on Linux

# From <https://wiki.debian.org/FlashPlayer#Manual_update>.
# MUST be run as root.


FP_STATUS=$(update-flashplugin-nonfree --status | grep "Flash Player version ")

VERSION_INSTALLED=$(echo "${FP_STATUS}" | grep "installed" | cut -d ':' -f 2 | tr -d " ")
VERSION_AVAILABLE=$(echo "${FP_STATUS}" | grep "available" | cut -d ':' -f 2 | tr -d " ")

if [[ "${VERSION_INSTALLED}" == "${VERSION_AVAILABLE}" ]]; then
	echo "Flash Player is already up-to-date. (${VERSION_INSTALLED})"
	exit
fi

echo -e "Flash Player is being manually updated...\\n"

wget -q \
	-O archive.tar.gz \
	--show-progress \
	"https://fpdownload.adobe.com/get/flashplayer/pdc/${VERSION_AVAILABLE}/flash_player_npapi_linux.x86_64.tar.gz"
tar -xzf archive.tar.gz libflashplayer.so
mv libflashplayer.so /usr/lib/flashplugin-nonfree/
chmod 644 /usr/lib/flashplugin-nonfree/libflashplayer.so
chown root:root /usr/lib/flashplugin-nonfree/libflashplayer.so
rm archive.tar.gz

if [[ "$(update-alternatives --list flash-mozilla.so)" != "/usr/lib/flashplugin-nonfree/libflashplayer.so" ]]; then
	update-alternatives \
		--quiet \
		--install \
		/usr/lib/mozilla/plugins/flash-mozilla.so \
		flash-mozilla.so \
		/usr/lib/flashplugin-nonfree/libflashplayer.so \
		50
fi

echo "Flash Player has just been updated. (${VERSION_AVAILABLE})"