taking incremental backups

inc-db-backup.sh

#!/usr/bin/env bash
# Back up Script to take Incremental Backups
# Source: 
# Author: Amit

DAY=$(date +"%Y%m%d")
T=$(date +"%H%M")

MONTH=$(date +"%Y%m")
YEAR=$(date +"%Y")

YDAY=$(date -d '-1 day' '+%Y%m%d')
YMONTH=$(date -d '-1 day' '+%Y%m')
YYEAR=$(date -d '-1 day' '+%Y')

DEST="/var/www/backups/db/incbackup/$YEAR/$MONTH/$DAY/$T"
YDEST="/var/www/backups/db/incbackup/$YYEAR/$YMONTH/$YDAY"


#doomsday=`date -d "2012-12-21" +%s`
   
 	
today=$(date +"%Y-%m-%d")	
today=$(date -d "$today 04:00" +%s)

now=$(date +"%Y-%m-%d %H:%M") 
now=$(date -d "$now" +%s)

if [ $now -gt $today ]; then
	BASEDIR="/var/www/backups/db/fullbackup/$YEAR/$MONTH/$DAY"
  else
	BASEDIR="/var/www/backups/db/fullbackup/$YYEAR/$YMONTH/$YDAY"
fi

mkdir -p $DEST

#echo $BASEDIR

#mariabackup --backup  --target-dir=$DEST
mariabackup --backup --no-lock --target-dir=$DEST/ --incremental-basedir=$BASEDIR/

mkdir -p /var/www/backups/s3sync/db/inc/$DAY 
tar -czf /var/www/backups/s3sync/db/inc/$DAY/$T.tar.gz -C /var/www/backups/db/incbackup/$YEAR/$MONTH/$DAY $T


#mariabackup --backup --stream=xbstream | gzip > /var/www/database_backup/$DATE.gz