Simple Updater for Minecraft on Linux

wget https://launcher.mojang.com/download/Minecraft.tar.gz
if [ $? -eq 0 ] ; then
    echo "Download succeeded."
else
    echo "Download failed."
    exit 1
fi
rm -rf minecraft-launcher/
tar -xf Minecraft.tar.gz
if [ $? -eq 0 ] ; then
    echo "Extraction succeeded."
else
    echo "Extraction failed."
    exit 2
fi
rm Minecraft.tar.gz