If you need to compress old logs on IFS into archive and delete log files, you can easily use something like this command :
find -mtime +30 -type f -a \( -name "access*" -o -name "error*" \) -printf 'zip ./archive/archive-%TY%Tm.zip %f; rm %f\n' |shIt will find all files older than 30 days which name start with "access" or "error" and will add this file into ./archive/archive-YYYYMM.zip archive.
After file is added into archive, original file is deleted from IFS.
You must have the packages "findutils" and "zip" installed to run this command.