A snnipet compressing old log files.

compress-logs.sh

#!/bin/sh

TODAY=`date +%Y%m%d`
DIR="/path/to/dir"
DAYS=60

find ${DIR} -type f -name '*.log' -daystart -mtime +${DAYS} | while read f; do
    nice tar czfv ${f}.tgz --directory `dirname ${f}` `basename ${f}`
    rm ${f}
done