I am saving a DWG file as a DXF file for sending to customers.

I am looking for a command to bind all xrefs in a DWG file.  I know you can type -References and then "B" for bind, but it asks you for each reference by name to bind.  I want to cart blanche bind all xrefs.  In AutoCAD you can type "*" as the means to bind all xrefs.  In draftsight if you type this it says this is not a valid xref.  Is there an easy way to bind all xrefs via the command line without knowing what xrefs are in the file?