Retrieves the route for a given domain using the `ip` and `dig` tools.

get-route.sh

#!/bin/bash

HOST="$1"

if [[ -z "$HOST" ]]; then
  echo "Usage: $0 <HOSTNAME>"
  exit 1
fi

IP_ADDRESS=$(dig +short A "$HOST" 2>/dev/null)

if [[ -z "$IP_ADDRESS" ]]; then
  echo "Could not resolve IP address for $HOST"
  exit 1
fi

route=$(ip route get "$IP_ADDRESS" 2>/dev/null | head -1)

if [[ -z "$route" ]]; then
  echo "No route found for $IP_ADDRESS ($HOST)"
else
  # echo "Route for $HOST ($IP_ADDRESS):"
  echo "$route"
fi

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