Hello folks, of course you manage a lot of nasty DBMS and of course you have no time to care about backup-ing them all manually.
Here i come with a simple yet nice .sh script for all the seasons to use under any (i suppose) unix system.

1. Create a new .sh file, name it as you like, maybe backup.sh
2. Open and edit it, add this lines and fill all the required fields

   ############# § Backup My MySQL § ##############
   ### BMMSQL 1.0 Lite - By Jonathan Argentiero ###
   ### This script tastes better with Cronjobs! ###
   ################################################
   
   ####################
   ### System Setup ###
   ####################
   BACKUP=(insert folder here) # REQUIRED #
   NOW=$(date +"%d-%m-%Y")
   INCFILE="/root/tar-inc-backup.dat"
   DAY=$(date +"%a")
   
   ###################
   ### MySQL Setup ###
   ###################
   MUSER="(insert username here)"  # REQUIRED #
   MPASS="(insert password here)"  # REQUIRED #
   MHOST="(insert mysql ip here)"  # REQUIRED #
   MYSQL="$(which mysql)" # OPTIONAL #
   MYSQLDUMP="$(which mysqldump)" # OPTIONAL #
   GZIP="$(which gzip)" # OPTIONAL #
   
   ##########################
   ### Start MySQL Backup ###
   ##########################
   DBS="$($MYSQL -u $MUSER -h $MHOST -p$MPASS -Bse 'show databases')"
   for db in $DBS
   do
    FILE=$BACKUP/mysql-$db.$NOW-$(date +"%T").gz
    $MYSQLDUMP -u $MUSER -h $MHOST -p$MPASS $db | $GZIP -9 > $FILE
   done
   
   #################
   ### Good Job! ###
   #################

3. create a cronjob

   crontab -e

   similar to

   1 1 * * * sh /home/backup.sh

..and it’s done!