Search or sort Apache logs
Script to count unique ips in apache access log
cat my-web-app-access_log.4 | grep "04/Mar/2012:10:" >> day_04.txt
awk '{!a[$1]++}END{for(i in a) if ( a[i] >10 ) print a[i],i }' myfile.txt | sort -nr | more
awk '{!a[$1]++}END{for(i in a) if ( a[i] >10 ) print a[i],i }' myfile.txt