VIVALDI UPGRADE

#!/bin/bash
do_version_check() {

   [ "$1" == "$2" ] && return 10

    verzio1eleje=`echo $1 | cut -d "." -f -1`
    verzio1vege=`echo $1 | cut -d "." -f 2-`

    verzio2eleje=`echo $2 | cut -d "." -f -1`
    verzio2vege=`echo $2 | cut -d "." -f 2-`

         if [ "$verzio1eleje" != "$1" ] || [ "$verzio2eleje" != "$2" ]; then
            [ "$verzio1eleje" -gt "$verzio2eleje" ] && return 11
            [ "$verzio1eleje" -lt "$verzio2eleje" ] && return 9

            [ "$verzio1eleje" == "$1" ] || [ -z "$verzio1vege" ] && verzio1vege=0
        [ "$verzio2eleje" == "$2" ] || [ -z "$verzio2vege" ] && verzio2vege=0
            do_version_check "$verzio1vege" "$verzio2vege"
            return $?
        else
        [ "$1" -gt "$2" ] && return 11 || return 9
        fi
        }
LATEST_VERSION=`curl -ks https://repo.vivaldi.com/archive/rpm/x86_64/ | sed '/</ {:k s/<[^>]*>//g; /</ {N; bk}}' | grep vivaldi-snapshot | cut -d "-" -f 3 | sort -nr | head -n 1`
INSTALLED_VERSION=`rpm -q vivaldi | cut -d '-' -f2`

do_version_check "$LATEST_VERSION" "$INSTALLED_VERSION"
RESULT_OF_COMPARE=$?


if [ $RESULT_OF_COMPARE -eq 11 ]; then
    rpm -Uvh  https://repo.vivaldi.com/archive/rpm/x86_64/vivaldi-snapshot-$LATEST_VERSION-1.x86_64.rpm
fi
exit 0