From: David Huggins (djh210_at_cam.ac.uk)
Date: Fri Nov 05 2010 - 14:58:18 CDT

Dear All,

I am currently trying to run a python script from the command line to
analyse a NAMD trajectory with VMD. I have read the PSF and DCD trajectory
and am attempting to write a new PSF and DCD with just an atom selection. I
cannot seem to use save or write correctly. What is the syntax needed for a
species 'molecule'?

Thanks very much,

Dave