automatically update discord on debian/ubuntu systems

discord-updater.sh

#!/bin/bash

URL="https://discord.com/api/download?platform=linux&format=deb"

DL=$(curl -w "%{url_effective}" -I -L -s -S $URL -o /dev/null)

DEB=$(echo $DL | grep -o 'discord-.*\.deb$')

VER=$(echo $DEB | grep -o '[0-9]*\.[0-9]*\.[0-9]*')

INSTALLED=$(ls ~/.config/discord/ | grep '[0-9]*\.[0-9]*\.[0-9]*' | head -1)

if [ "$VER" = "$INSTALLED" ]; then
	echo "Running latest Discord version ($VER), skipping update."
	exit 0
else
	echo "Automatically updating Discord from $INSTALLED to $VER..."
	if ! wget "$DL" -P ~/Downloads/; then
		echo "Failed to download deb package."
		exit 1
	fi

	if ! sudo dpkg -i "~/Downloads/$DEB"; then
		echo "Failed to install $DEB."
		exit 2
	fi

	echo "Automatically updated Discord to version $VER."
	exit 0
fi