Hi, Man page of uname command states that uname options: -r, --kernel-release print the kernel release -v, --kernel-version print the kernel version But I got the following result while using these options: inlc7921> uname -r 2.6.16.60-0.58.1.3835.0.PTF.638363-smp inlc7921> uname -v #1 SMP Wed Dec 2 12:27:56 UTC 2009 This seems a little opposite to what man page suggests. Please do take a look.