Hello,
        I am trying to estimate the session based on the following 
logformat in ANALOG.CFG:
(%u %i %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %v). 

Sample line from logfile:
63.228.147.160.5770984639909332 - [15/Mar/2001:00:05:09 -0700] "GET 
/palette4/current/cover.gif HTTP/1.1" 200
4409 "http://www.newtimes.com/" "Mozilla/4.0 (compatible; MSIE 5.0; Windows 
98; DigExt)" www.newtimesbpb.com

With this format I was able to turn on the User report.  However the count I 
get is higher than the following method I used to get a count. I am off 
10,000.

gawk '{print $1}' logfile | sort | uniq | wc --lines.  

I am assuming that the user report will return the unique user based on %u.

What does the user report represent?
Is this method a good way of approximating session      s?
Is my counting method using gawk valid?

ANALOG VERSION 4.16
OS LINUX REDHAT 
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