[CentOS] Sort logfiles on common lines?

On Sun, 25 Sep 2011 21:51:51 +0300
Dotan Cohen wrote:

> Is there a way to get the most common (unique) lines of the file?

If you want what I think you want, a combination of cut and sort will do it.

>By the way, I'm not sure if this is RHEL or CentOS, or which version:
> I assume that it is one of these, as Yum is installed. How would I find out?

cat /etc/redhat-release

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