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Date:Mon Nov 15 02:17:56 1999 
Subject:Re: Possibility of executing programs 
From:"Stephen F. K. Leach" 
Volume-ID:991115.02 

Stig asked :-
>I asked at comp.lang.pop some time ago whether it was possible to
>execute an external program from Poplog and most specifically from
>the Common Lisp part but I don't think I got a reply. Is this
>possible?

Yes - it is definitely possible.  The "base" language of Poplog is
Pop11 and the typical answer to the question "how do I add an new
capability to Poplog Common Lisp" is use Pop11.

The relevant help file is "help poplisp" (or $usepop/pop/help/poplisp).
The Pop11 "system" capabilities are not, as far as I know, documented
in a single place.  The most general call available is run_unix_program,
the most convenient is sysobey.  Both have their own help files.  Read
"ref sysutil" for background info.

Hope this helps,

Steve