#!/usr/bin/perl -n BEGIN {$|=1} @f = split /\t/, $_; print unless $f[2] =~ /bot|google|slurp|check_http|hosttracker|yandex|spider|presto|scanner|phpcrawl|lwp|wget|findfiles|geohasher/i || $f[9] =~ /\.(jpg|gif|png|css|jar|ico)$/;