code: def rename(name, new_name):
      '''
      Change the username for a named user
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' user.rename name new_name
      '''
      current_info = info(name)
      if not current_info:
          raise CommandExecutionError('User \'{0}\' does not exist'.format(name))
      new_info = info(new_name)
      if new_info:
          raise CommandExecutionError(
              'User \'{0}\' already exists'.format(new_name)
          )
      cmd = ['usermod', '-l', new_name, name]
      __salt__['cmd.run'](cmd, python_shell=False)
      return info(new_name).get('name') == new_namf rename(name, new_name):
      '''
      Change the username for a named user
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' user.rename name new_name
      '''
      current_info = info(name)
      if not current_info:
          raise CommandExecutionError('User \'{0}\' does not exist'.format(name))
      new_info = info(new_name)
      if new_info:
          raise CommandExecutionError(
              'User \'{0}\' already exists'.format(new_name)
          )
      cmd = ['usermod', '-l', new_name, name]
      __salt__['cmd.run'](cmd, python_shell=False)
      return info(new_name).get('name') == new_name
docs: Change the username for a named user
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' user.rename name new_name