How can I grab info from a log file including and after a keyword 'Mozilla' is recognized. Here is a sample line of from the log data:

ip here - - 02/Jan/2001:00:09:30 +0000 "POST /path HTTP/1.1" 200 132 Mozilla/4.0 (compatible; MSIE 5.01; Windows 98)

I'm trying to grab 'Mozilla' and everything after it, (but nothing before), count the characters in the captured data and report how many are over 100 char.

I've tried a variation of pattern matching and grep but continually fail. (i know...i really suck but i'm trying really hard ot learn this stuff) Here's what I have drooled out so far. 

#!/usr/bin/perl
if ($_[0])
{
   $filename=$_[0];
}
else
{
   print "USAGE: getUserAgent <logfile name>\n";
   exit;
}

@lines=`cat /path/$filename`;
foreach $line (@lines)
{
   @elements=split(' ',$line);
   if ($elements[1] eq "Mozilla")
   {
    $capture = grep(/bMozilla/i\w+\W+\d+\s+\S+,userAgent);
   }
    printf "\n", @userAgent;
}

[download]

Needless to say this errors out badly:

Backslash found where operator expected at getUserAgent.pl line 18, near "/\bMozilla/i\" (Missing operator before \?) syntax error at getUserAgent.pl line 18, near "/\bMozilla/i\" Substitution replacement not terminated at getUserAgent.pl line 18.

This is my first post. Can one of you awsome Monks please help?

edmay98

In reply to grabbing info from log after key word by Anonymous Monk

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