Regex für URL in Bash
regex='^(https?|ftp|file)://[-A-Za-z0-9\+&@#/%?=~_|!:,.;]*[-A-Za-z0-9\+&@#/%=~_|]\.[-A-Za-z0-9\+&@#/%?=~_|!:,.;]*[-A-Za-z0-9\+&@#/%=~_|]$'
url='http://www.google.com/test/link.php'
if [[ $url =~ $regex ]]
then
echo "$url IS valid"
else
echo "$url IS NOT valid"
fi
Gifted Gorilla