Update NVIDIA driver on any linux box

update_nvidia.sh

#!/bin/bash
LC_ALL=C.UTF-8 LANG=C.UTF-8 checkonly=false

check_terminal()
{
    tty -s || exec xterm "$0"
}

check_root()
{
    [ "$(id -u)" != 0 ] && exec sudo "$0"
}

check_x()
{
    pidof -q Xorg || return
    echo "Stop X & switch to virtual terminal before updating!"
    echo "If you just want to check if there're any updates,"
    echo "press c, or anything else to exit."
    read -r -N1 -p"Please select one: "
    case $REPLY in
        c) checkonly="true"; echo;;
        *) exit 1;;
    esac
}

check_version()
{
    echo "Checking..."
    hiv=$(
        curl -fsSL \
            https://www.nvidia.cn/drivers/unix/linux-amd64-display-archive |
        grep -FA1 \
            'driverResults.aspx' |
        grep -Eo "[0-9]{3}\.[0-9]{2,3}(\.[0-9]{2})?" |
        sort -V |
        tail -n1
    )
    hili="https://cn.download.nvidia.cn/XFree86/Linux-x86_64/$hiv/NVIDIA-Linux-x86_64-$hiv.run"
}

install_update()
{
    nv=$(
        modinfo nvidia |
        grep "^version:" |
        cut -d: -f2
    )

    if printf "%s\n%s" $hiv $nv | sort -CV
    then
        echo "No update available."
        read -r -n1 -p"Press any key to quit..."
        exit 0
    fi

    echo "A new update for Nvidia Driver is available: $hiv!"
    if ! $checkonly
    then
        echo "Do you want to update it? [y/n]"
        while true
        do
            read -r -N1
            case $REPLY in
                [Yy]) break;;
                [Nn]) exit 0;;
                *) echo "Wrong reply! Input again!";;
            esac
        done
        echo "Downloading & Running..."
        wget -O/tmp/nvidia.run "$hili"
        bash /tmp/nvidia.run
    fi
    read -n1 -p"Press any key to quit..."
    exit 0
}

check_terminal
check_root
check_x
check_version
install_update