Shell script Backup DB and Clean up old file

SHELL SCRIPT BACKUP DATABASE (CHAY TAM 2-3h AM)
backup-db.sh
#! /bin/sh

# Get current datetime information
date=`/bin/date +%Y%m%d-%H%M`

# Dump to file
mysqldump -uUSER -pPASSWORD DB_NAME > /var/server/backup/db/zzz.sql

# Change current working dir
cd /var/server/backup/db/

# Compress data file
/bin/tar -czf zzz-$date.tgz zzz.sql

# Remove data file
/bin/rm -f zzz.sql

# Remove old compressed data file (30 days before)
for file1 in "$( /usr/bin/find /var/server/backup/db/ -type f -mtime +30 )"
do
   /bin/rm -f $file1
done

exit 0


XOA FILE UPLOAD CU
#! /bin/sh
# Tim cac file duoc tao cach day tu 60 ngay tro len
for filename in "$( /var/www/html/data/ -type f -mtime +60 )"
do
   /bin/rm -rf $filename
done
exit 0