Cleanup directory sh script file for linux centos

I need a .sh cron script for a LINUX CENTOS in order to clean the BK directory. I have the following dirs: /BK-DIR > contain the backup file ([login to view URL]) where X stands for F=Full Backup, I=Incremental Backup) with a full weekly backup and a daily Incremental backup ---------------------- /BK-DIR/DB > contain the database backup ([login to view URL]) all database Backup are Full backup with the daily full backup ------------------------- I wish keep only the following files, where the date is the date written in the filename: all files (f and I) < 1 month all Full Backup < 2 month all montly F backup (1 file per month) < 1 year all yearly F backup (1 file per year) > 1 year I'll have always: 1 yearly F backup for each year 12 montly F backup for the last 12 months 1 weekly F backup for the last 2 months 1 daily I backup for the last month -------------- The script will use at least the following variables 1)flag test (0-1) in test mode will send an e-mail report and will write a log without deleting any file 2) files BK directory (default =/BK-DIR) 3) database BK directory (default =(/BK-DIR/DB) 4) The date limits of the incremental backup (default = 8 weeks) 5) the date limits for the weekly backup (default = 8 weeks) 6) the date limits for the montly backup (default = 12 months) ------------------------------------------ that's all MAX Accepted bid = 30 usd I'll test the script in test mode first and then pay.