Unix command to show distro info?

Unix command to show distro info?
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answer:uname -a might do the trick. This is the output on my Mac. Macintosh:~ ****************$ uname -a Darwin Macintosh.local 9.2.0 Darwin Kernel Version 9.2.0: Tue Feb 5 16:13:22 PST 2008; root:xnu-1228.3.13~1/RELEASE_I386 i386
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