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Full Discussion: faster way to loop?
Top Forums UNIX for Advanced & Expert Users faster way to loop? Post 302073098 by tads98 on Wednesday 10th of May 2006 06:09:43 AM
Old 05-10-2006
Quote:
Originally Posted by jim mcnamara
Unless I misunderstand, you want the last entry for each distinct ip, and since it is a log file it is already in date order with the last entry for an ip=last time it appears. Correct? try:
Code:
awk '{arr[$1]=$0 }
        END{for (i in arr )
                  print arr[i] } '  myweblog > somefile


thanks! kindly interpret how this works. this gets the last entry for each IP. is there a way on how I can include a grep using this? I want to get the last entries with the myURL for each IP. thanks!
 

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Log::Dispatch::Array(3pm)				User Contributed Perl Documentation				 Log::Dispatch::Array(3pm)

NAME
Log::Dispatch::Array - log events to an array (reference) VERSION
version 1.001 SYNOPSIS
use Log::Dispatch; use Log::Dispatch::Array; my $log = Log::Dispatch->new; my $target = []; $log->add(Log::Dispatch::Array->new( name => 'text_table', min_level => 'debug', array => $target, )); $log->warn($_) for @events; # now $target refers to an array of events DESCRIPTION
This provides a Log::Dispatch log output system that appends logged events to an array reference. This is probably only useful for testing the logging of your code. METHODS
"new" my $table_log = Log::Dispatch::Array->new(\%arg); This method constructs a new Log::Dispatch::Array output object. Valid arguments are: array - a reference to an array to append to; defaults to an attr on $table_log array This method returns a reference to the array to which logging is being performed. log_message This is the method which performs the actual logging, as detailed by Log::Dispatch::Output. AUTHOR
Ricardo Signes, "<rjbs@cpan.org>" BUGS
Please report any bugs or feature requests through the web interface at <http://rt.cpan.org>. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes. COPYRIGHT
Copyright 2008 Ricardo SIGNES, all rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.10.1 2008-04-29 Log::Dispatch::Array(3pm)
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