Berigan, Matthew wrote:

>Hi!
>
>I'm finally past bad log data and I think that I'm getting inconsistencies
>between WebTrends and Analog that can't be explained by INCLUDES or
>EXCLUDES.
>
>First, here's the summary results:
>
>ANALOG
>Program started at Wed-03-Apr-2002 09:38. 
>Analysed requests from Sun-24-Mar-2002 00:04 to Sat-30-Mar-2002 23:58 (7.00
>days). 
>Successful requests: 76,490 <<<<<<<<<<A>>>>>>>>>>
>Average successful requests per day: 10,933 <<<<<<<<<<D>>>>>>>>>>
>Successful requests for pages: 25,765 <<<<<<<<<<B>>>>>>>>>>
>Average successful requests for pages per day: 3,682 <<<<<<<<<<C>>>>>>>>>>
>Failed requests: 760 
>Redirected requests: 680 
>Distinct files requested: 2,047 
>Distinct hosts served: 5,009 <<<<<<<<<<E>>>>>>>>>>
>Corrupt logfile lines: 4 
>Data transferred: 792.723 megabytes 
>Average data transferred per day: 113.313 megabytes 
>
>WEBTRENDS
>Date & Time This Report was Generated Wednesday April 03, 2002 - 09:17:45 
>Timeframe 03/24/02 00:04:41 - 03/30/02 23:58:54 
>Number of Hits for Home Page N/A 
>Number of Successful Hits for Entire Site 77138 <<<<<<<<<<A>>>>>>>>>>
>Number of Page Views (Impressions) 25816 <<<<<<<<<<B>>>>>>>>>>
>Number of User Sessions 8488 <<<<<<<<<<E>>>>>>>>>>
>User Sessions from United States 0% 
>International User Sessions 0% 
>User Sessions of Unknown Origin 100% 
>Average Number of Hits per Day 11019 <<<<<<<<<<D>>>>>>>>>>
>Average Number of Page Views Per Day 3688 <<<<<<<<<<C>>>>>>>>>>
>Average Number of User Sessions per Day 1212 
>Average User Session Length 00:08:36 
>
>Most everything (A-D)appears to be close enough that I don't even consider
>it worthy of question. Item E, however, bugs me. Can anybody guess why
>Distinct Hosts [Analog] and User Sessions [WT] should be so different? I
>think this is supposed to be the same data and my assumption is that it is
>the number of distinct IP addresses listed in the log (I suppose I could
>count those (aaaack!!)).
>
>Any thoughts?
>
>thx
>MattB 
>
>
In a Unix shell environment (including Cygwin), it's not
difficult to count the number of unique hosts from a log.
Something similar to the following should work fine.  It
works with Apache combined log format in Solaris 8.
Adjusting the delimiter (-d) and field number (-f) in cut
might be necessary for other log formats.

-- Duke Hillard

cut -d" " -f1 /dir/subdir/server.log > /dir2/somefile.txt
sort -u -o /dir2/anotherfile.txt /dir2/somefile.txt
grep -c "." /dir2/anotherfile.txt


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