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how to launch a system command (e.g. "cmd.exe") from within Lisp?
BCad doesn't know command "shell" on its command line.
Although I guess it may be a simple question, I cannot google anything...
Thank you in advance.
Looking for something like this?
(setq batch (strcat (getvar "dwgprefix") "your_batch.bat"))
Use the command _SHELL or (startapp) as already suggested.