Deleting all waveforms from a directory in M>/

Hi 
I have an AFG31152 and I have been using the Mass memory folder M:/ to store my custom waveforms which I upload to AWG by saving from the edit memory (EMEM1). Currently I have lots of waveforms in a folder (M:/waveforms/) that I no longer need, but have automatically generated filenames (such that I don't know the names of all the files in there). 

How can I delete all the files in M:/waveforms? Something like 

afg.write('MMEMory:CDIRectory "M:/waveforms"')
afg.write('MMEMory:DELete "*.tfwx"')

would be ideal but this doesn't work.
Alternatively is there a way to SSH normally into the machine, so I access the file system in a terminal?
Cheers

Hi Robertson,

The MMEMory:CATalog? command will list all the files in the current directory (the description mentions the USB memory but it actually works for all drives, I'm working on getting the documentation updated).

Dear Alfonso,

The MMEMory:CATalog? command currently doesn't return all the waveform names - I suspect that because there are quite a lot of them, if they are fed into the output buffer, but I suspect that there are so many it may overflow it or take so much time that the pyvisa connection closes. However currently if I execute:

r = afg.write('MMEMory:CATalog?')

print('{}'.format(r)