Search for User by Email Address

Searches for a WordPress user account by email address. Will return the name of the site if found.

read -r -d '' php_code << heredoc
<?php
\$user = get_user_by( "email", "name@domain.tld" );
if ( \$user ) {
    \$site = get_home_url();
    echo "Found user on \$site";
}
heredoc

echo -n "$php_code" > hunt_user_by_email.php

wp eval-file hunt_user_by_email.php
rm hunt_user_by_email.php

Be sure to replace name@domain.tld with the email address you are searching for.