Computer Tips - How do I find out which version of the Linux kernel I am running?

Date: 2008jun19 OS: Linux Q. How do I find out which version of the Linux kernel I am running? A. Do this:
uname -a
If your system isn't up (you booted from a rescue disk, for example) you can look at /etc/grub.conf. Look for default=<number> and the <number>th entry is the kernel that will boot by default.