Finding SAP system type (ABAP, Java or Dual stack) remotely (by software not person)

How I can tell an SAP system is ABAP or Java or Dual Stack through only command line remote access and by looking at processes running at OS level?

For example, I can see the following (when I install Linux trail version)

The above are some of the examples of command line items I noticed on linux trail version.

I noticed that the default.pfl has system/type not mandatory in all servers so I cannot depend.

Assume that there is no physical person going through all this but a software needs to identify what type SAP system. Any recommendations are also appreciated

Thanks

Raju