Backup crons
These can be used to setup backups in a shared hosting with CPANEL (for example)
Backup a public web directory to a ftp directory
cd ~/public_html && tar -zcvf ~/public_ftp/bkp$(date +\%F).tar.gz .
Dump a database to a ftp directory
mysqldump -u<user> -p'<pass>' <dbname> > ~/public_ftp/dump-$(date +\%F).sql
Remove files older than 14 days
find ~/public_ftp -mtime +13 -type f -delete