#!/bin/bash
echo "https://""one-two-three-four-five.dev.domain.com" | \
sed -E "s~(https?://)([[:alnum:]_-]*)(.*)~Group1: \1\nGroup2: \2\nGroup3: \3~"
IyEvYmluL2Jhc2gKZWNobyAiaHR0cHM6Ly8iIm9uZS10d28tdGhyZWUtZm91ci1maXZlLmRldi5kb21haW4uY29tIiB8IFwKIHNlZCAtRSAic34oaHR0cHM/Oi8vKShbWzphbG51bTpdXy1dKikoLiopfkdyb3VwMTogXDFcbkdyb3VwMjogXDJcbkdyb3VwMzogXDN+Ig==