how to identify 32 vs 64 bit CPU?

[Dennis Gilmore]

Once upon a time Thursday 09 August 2007, Robert P. J. Day wrote:
>   i'm sure there's a trivial way to do this, but what's a simple way
> to tell if a system has a 32 or a 64 bit CPU?  something that i could
> run from within a script.  thanks.
>
> rday

cat /proc/cpuinfo |grep lm 
 
the lm flag indicates supporting 64 bit

Dennis
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