Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!prcrs!wrwalke
From: wrwalke@prcrs.UUCP (William Walker)
Newsgroups: comp.unix.questions
Subject: Re: determining size of physical memory
Keywords: core, physical memory, size of core
Message-ID: <1369@prcrs.UUCP>
Date: 31 Dec 90 23:54:01 GMT
References: <1990Dec27.202715.27688@Neon.Stanford.EDU> <1368@prcrs.UUCP> <7325@plains.NoDak.edu>
Organization: PRC Realty Systems, McLean, VA
Lines: 20

In article <7325@plains.NoDak.edu>, bakke@plains.NoDak.edu (Jeffrey P. Bakke) writes:
> In article <1990Dec27.202715.27688@Neon.Stanford.EDU>, hitt@Neon.Stanford.EDU (Daniel Hitt) writes:
> > Is there a standard UNIX program or system call that determines
> > the size of the physical memory of the machine on which it is
> > running?
> > I'd like to be able to do this on Ultrix, SunOS, and the NeXT OS,
> > and possibly HP-UX.
> 
> 'wc -c < /dev/mem' using the word count program to count the number of
> bytes.  I've found on most systems that it will return the correct physical
> memory size (not swap space though).  

or how about ...

dd if=/dev/mem of=/dev/null bs=1024 

this one is a try-at-you-own-risc solution, but it
works on vax ultrix 3.1 and s800 hp-ux 7.0.

bill.