Please read the script fully before you execute. Actually there is no harm there but you have to know what you doing..
Just download the script and run via SSH-CLI terminal
- backup each mysql db into a different file, rather than one big file
 - as with –all-databases. This will make restores easier.
 - To backup a single database simply add the db name as a parameter (or multiple dbs)
 - 
mkdir -p /vv_files/backups
 - 
useradd --home-dir /var/backups/mysql --gid backup --no-create-home mysql-backup
 - Remember to make the script executable, and unreadable by others
 - 
chown -R mysql-backup:backup /var/backups/mysql
 - 
chmod u=rwx,g=rx,o= /var/backups/mysql/dump.sh
 - crontab entry – backup every 6 hours
 - sudo crontab -e [ set your desired timing. 6 hrs is safer for sysadmins]
 
– Download the script file from our GITHUB VVCARES