bash script to check installed and available (online) nvidia driver. it can download the latest as well. I use it if I end up with a black screen after Kernel update.

nvidia-check-driver.sh

#!/bin/bash

# Installed Version
# modinfo nvidia | grep 'version:'
INSTALLED=`modinfo nvidia | grep '^version' | sed -r 's/version:.*([0-9]{3}\.[0-9]{2})/\1/'`

# Latest Long Lived Branch Version
AVAILABLE=`curl -s https://www.nvidia.com/en-us/drivers/unix/ | tr -d [:blank:] | \
    grep -A 2 'Linuxx86_64/AMD64/EM64T' | \
    grep 'LatestProductionBranchVersion' | \
    grep -Po -m1 '(?<=>)[\d]{3}.[\d]{2,3}.[\d]{2,3}(?=<)' | head -1`
echo "installed: ${INSTALLED}"
echo "available: ${AVAILABLE}"

while test $# -gt 0
do
    case "$1" in
        --download) echo "downloading latest driver ${AVAILABLE}";
            wget "https://us.download.nvidia.com/XFree86/Linux-x86_64/${AVAILABLE}/NVIDIA-Linux-x86_64-${AVAILABLE}.run" -O ~/Downloads/NVIDIA-Linux-x86_64-${AVAILABLE}.run
            chmod +x ~/Downloads/NVIDIA-Linux-x86_64-${AVAILABLE}.run
            ;;
        --*) echo "bad option $1"
            ;;
        *) echo "argument $1"
            ;;
    esac
    shift
done