on OS X with Goyas BE_ExecuteSystemCommand, I'm trying to check for installed modules like in my case, pip, the Python package installer. But only "stock"-commands give returns, "pip -V" returns "Unbekannter Fehler -1" (Unknown Error -1). Same goes even for "java". I tried both, bash and sh and both syntaxes in the plugin.
My guess is, that BE_ExecuteSystemCommand doesn't support all commands, but on the other hand that seems unlikely and also i've read otherwise.
And has anyone ever executed python with BE_ExecuteSystemCommand?