CDIL-Table vise Backup for Mysql / Maria DB

Reference : https://www.howtoforge.com/mysql-backup-table-by-table-backup-with-auto-rotation-for-easy-restoration-of-partial-full-database

Crontab -l

10 1 * * * /sbin/maria_tablevise_bkp.sh >1 /dev/null >2 /dev/null

cat /sbin/maria_tablevise_bkp.sh

#!/bin/bash
# Database credentials
DB_USER=root
#Please append password in the xxxxx section below, note that there is
# no space between -p and xxxxx
DB_PASS="-pSystem_0099?"
# Get list of Databases except the pid file
DBS_LIST=$(echo "show databases;"|mysql -u $DB_USER $DB_PASS -N)
# Log file
BAKUP_LOG=/bkp/backup_maria_tables/log/db-backup.log
# Backup Base directory
BASE_BAK_FLDR=/bkp/backup_maria_tables/db
# Backup rotation period.
RM_FLDR_DAYS="+30"
# From here, only edit if you know what you are doing.
index=0
# Check if we can connect to the mysql server; otherwise die
#if [ ! "$(id -u -n)" = "mysql" ]; then
#        echo -e "Error:: $0 : Only user 'mysql' can run this script"
#        exit 100
#fi
PING=$(mysqladmin ping -u $DB_USER $DB_PASS 2>/dev/null)
if [ "$PING" != "mysqld is alive" ]; then
       echo "Error:: Unable to connected to MySQL Server, exiting !!"
       exit 101
fi
# Backup process starts here.
# Flush logs prior to the backup.
mysql -u $DB_USER $DB_PASS -e "FLUSH LOGS"
# Loop through the DB list and create table level backup,
# applying appropriate option for MyISAM and InnoDB tables.
for DB in $DBS_LIST; do
   DB_BKP_FLDR=$BASE_BAK_FLDR/$(date +%d-%m-%Y)/$DB
   [ ! -d $DB_BKP_FLDR ]  && mkdir -p $DB_BKP_FLDR
   # Get the schema of database with the stored procedures.
   # This will be the first file in the database backup folder
   mysqldump -u $DB_USER $DB_PASS -R -d --single-transaction $DB | \
           gzip -c > $DB_BKP_FLDR/000-DB_SCHEMA.sql.gz
   index=0
   #Get the tables and its type. Store it in an array.
   table_types=($(mysql -u $DB_USER $DB_PASS -e "show table status from $DB" | \
           awk '{ if ($2 == "MyISAM" || $2 == "InnoDB") print $1,$2}'))
   table_type_count=${#table_types[@]}
   # Loop through the tables and apply the mysqldump option according to the table type
   # The table specific SQL files will not contain any create info for the table schema.
   # It will be available in SCHEMA file
   while [ "$index" -lt "$table_type_count" ]; do
       START=$(date +%s)
       TYPE=${table_types[$index + 1]}
       table=${table_types[$index]}
       echo -en "$(date) : backup $DB : $table : $TYPE "
       if [ "$TYPE" = "MyISAM" ]; then
           DUMP_OPT="-u $DB_USER $DB_PASS $DB --no-create-info --tables "
       else
           DUMP_OPT="-u $DB_USER $DB_PASS $DB --no-create-info --single-transaction --tables"
       fi
       mysqldump  $DUMP_OPT $table |gzip -c > $DB_BKP_FLDR/$table.sql.gz
       index=$(($index + 2))
       echo -e " - Total time : $(($(date +%s) - $START))\n"
   done
done
# Rotating old backup. according to the 'RM_FLDR_DAYS'
if [ ! -z "$RM_FLDR_DAYS" ]; then
   echo -en "$(date) : removing folder : "
   find $BASE_BAK_FLDR/ -maxdepth 1 -mtime $RM_FLDR_DAYS -type d -exec rm -rf {} \;
   echo
fi

Backup is stored in

/bkp/backup_maria_tables/db/{date}/{db name}/{table name}.sql.gz