#!/bin/bash

DAILY_NAME=$( date +'%Y%m%d' )
LINK_DEST=$( date +'%Y%m%d' -d "1 day ago" )

SOURCE_PATH="/local-current-backup/"
BACKUPS_PATH="/backups/daily"
DESTINATION_PATH="${BACKUPS_PATH%/}/${DAILY_NAME}"

rsync --archive --links --recursive \
      --hard-links --perms --owner --group \
      --devices --specials --times --sparse \
      --delete --numeric-ids --link-dest="${BACKUPS_PATH%/}/${LINK_DEST}" \
      "${SOURCE_PATH%/}/" "${DESTINATION_PATH}"