detecting 32 or 64-bit hardware / Kernel

To: fedora-list@xxxxxxxxxx
Subject: detecting 32 or 64-bit hardware / Kernel
From: sudo Yang <sudoyang@xxxxxxxxx>
Date: Tue, 2 Aug 2005 10:59:08 -0700
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Reply-to: sudo Yang <sudoyang@xxxxxxxxx>, For users of Fedora Core releases <fedora-list@xxxxxxxxxx>

What's the easiest way to detect whether a system is running 32 or 64 bit?

Follow-Ups:
- Re: detecting 32 or 64-bit hardware / Kernel
  - From: StarQuake