Check ETH validator withdrawal against CLWP repo

checkValidator.sh

#!/bin/bash
# usage ./checkValidator <space separated list of validators>


NOT_FOUND="Not Found"

if [ $# -eq 0 ]
  then
    echo "You must provide at least one argument. \n Use with ./clwpCheck.sh <validator1Index> <validator2Index> ..."
fi

# Check cURL command if available (required), abort if does not exists
type curl >/dev/null 2>&1 || { echo >&2 "Required curl but it's not installed. Aborting."; exit 1; }
echo "🕵️  Checking the public CLWP list at https://github.com/benjaminchodroff/ConsensusLayerWithdrawalProtection/tree/main/mainnet"

for i in "$@"; do
  	echo
	RESPONSE=`curl -s "https://github.com/benjaminchodroff/ConsensusLayerWithdrawalProtection/commits/main/mainnet/"$i".json.atom"`

	if [ "$RESPONSE" == "$NOT_FOUND" ]; then
	    echo "🟢  Validator $i not found in the broadcast list."
	else
	    JSONRESPONSE=`curl -s "https://raw.githubusercontent.com/benjaminchodroff/ConsensusLayerWithdrawalProtection/main/mainnet/"$i".json"`
        startIndex=$(echo $JSONRESPONSE | grep -b -o 'to_execution_address' | cut -d: -f1)
        withdrawalAddress=${JSONRESPONSE:$startIndex+23:42}
	    echo "🔴  Validator $i: Watch out, there is a request to change the withdrawal address to "$withdrawalAddress
	    echo "    If you didn't request this change, you should contact CLWP right away 👉 https://clwp.xyz/index.php/contact.html"
	    echo "    This signed message will be broadcast at Shangai 👉 https://raw.githubusercontent.com/benjaminchodroff/ConsensusLayerWithdrawalProtection/main/mainnet/"$i".json"
	fi
done