On Fri, Oct 16, 2009 at 7:50 AM, Girish Venkatachalam
<[email protected]> wrote:
> uniq is very useful to know the unique IP addresses that visit your website.
>
Uniq(1):
       Discard  all but one of successive identical lines from INPUT (or stan-
       dard input), writing to OUTPUT (or standard output).


_successive_ as it says above ... hence uniq(1) is often used with sort(1).

Thanks for the articles,
Roshan Mathews
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