Jim Henderson wrote:

> On Thu, 22 Apr 2010 09:10:03 +0100, Invisible wrote:
> 
>> (I'm still having trouble thinking up a use-case for that. About the
>> only thing I can think of is trying to find out which header file
>> defines a particular symbol or something.)
> 
> Header file definitions, sure.
> 
> Some of the things I grep for regularly:
> 
> Which file contains contract information for a particular partner?
> 
> Which of the chat log files I have contains a reference to a particular
> website, user ID, password, or discussion?

Which of the lines in this chat log contains a normal message, as opposed to 
information like "Jim has joined #povray" or "Logfile started"?

I piped the result of that grep into 'sed' to extract only the username, 
then sort | uniq -c | sort -n, and I got an ordered list of who talks the 
most in the chatroom :)

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