6CYANA: write cor - CYANA command

Parameters: file=<filename>.cor            (required)
            bfactor=<real>                 (default: 0.0)
            chains=<string>                (default: *)
            details                        
            all                            
            oldall                         
            connect                        
            append                         

Writes a coordinate file in DG (Distance Geometry) format. Optionally,
the output may be appended to an existing file.  By default, the
Cartesian coordinates of the current structure are written. The
covalent connectivities may be included, too. Optionally, the Cartesian
coordinates of all selected structures may be written.
