Database backup and Remove older files

find and remove files older that 7 days
find /path-to-folder/ -name "dbname_*".sql  -mtime +7 -exec rm {} \;

database backup in compressed form:

ldir=$(mysqldump --routines --single-transaction -u user -ppassword dbname | gzip > /path-to-folder/dbname_`date +"\%Y\%m\%d\%H\%M\%S"`.sql.gz);


find and remove files older that 7 days

find /path-to-folder/ -type f -a -mtime +30 -exec rm {} \;