currently to use changePassword.php you have to pass in the new password as an argument to the script.
This is not really ideal on servers with multiple admins, and it also leaves the plaintext password on your shell history, which you later have to remove it from. Reading the password from stdin also prevents the admin from ever seeing the password depending on how it is used.
Therefore, I think the script should have the option to take in this password via standard input instead.