MagentoCustomerResePassword.php

<?php

/* Need to add this script and csv in var/shell folder */

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
ini_set('memory_limit', '5G');
error_reporting(E_ALL);
set_time_limit(0);

use Magento\Catalog\Api\Data\ProductInterface;
use Magento\Catalog\Model\Product;
use Magento\Eav\Model\ResourceModel\AttributeValue;
use Magento\Framework\App\Bootstrap;
use Magento\Framework\App\ObjectManager;

require __DIR__ . '/../../app/bootstrap.php';

$params = $_SERVER;

$bootstrap = Bootstrap::create(BP, $params);

$obj = $bootstrap->getObjectManager();

$state = $obj->get('Magento\Framework\App\State');
$state->setAreaCode('frontend');


$scopeConfig = $obj->get(\Magento\Framework\App\Config\ScopeConfigInterface::class);
$encryptor = $obj->get(\Magento\Framework\Encryption\EncryptorInterface::class);
$customerRegistry = $obj->get(\Magento\Customer\Model\CustomerRegistry::class);
$customerRepository = $obj->get(\Magento\Customer\Api\CustomerRepositoryInterface::class);
$sessionCleaner = $obj->get(\Magento\Customer\Api\SessionCleanerInterface::class);

$newPassword = 'NewPassword';
$customerId = '144652';
$customer = $customerRepository->getById($customerId);
$customer = $customerRepository->get()
$customerSecure = $customerRegistry->retrieveSecureData($customerId);
$customerSecure->setRpToken(null);
$customerSecure->setRpTokenCreatedAt(null);
$customerSecure->setPasswordHash($encryptor->getHash($newPassword, true));
$sessionCleaner->clearFor((int)$customerId);
$customerRepository->save($customer);
echo "Succesfully saved " . $customer->getEmail() . "\n";