text: CREATE USER '$c_user'@'%' IDENTIFIED BY '$c_pwd';
  GRANT ALL ON *.* TO '$c_user'@'%';
  CREATE USER '$c_user'@'localhost' IDENTIFIED BY '$c_pwd';
  GRANT ALL ON *.* TO '$c_user'@'localhost';
  CREATE USER '$c_user'@'127.0.0.1' IDENTIFIED BY '$c_pwd';
  GRANT ALL ON *.* TO '$c_user'@'127.0.0.1';
  flush privileges;