'Issues the PWD (Print Working Directory) command.
The L{getDirectory} does the same job but automatically parses the
result.
@return: a L{Deferred} that will be called when done.  It is up to the
caller to interpret the response, but the L{parsePWDResponse} method
in this module should work.'

def pwd(self):

    return self.queueStringCommand('PWD')
