How to automatically backup the script for Linux servers (mysql, attachment backup)

#!/bin/sh
SOURCE_FOLDER=/data
DB_FOLDER=/data/db
BACKUP_FOLDER=/data/backup
TM=`date +%Y%m%d%H%M%S`
echo start to dump mysql database and backup files at $TM
# delete old sql backup files
cd $DB_FOLDER
rm -rf $DB_FOLDER/*.sql
#dump mysql data
/usr/bin/mysqldump -h127.0.0.1 -uroot -pcz_pims@2018 --single-transaction --master-data=2 --databases ms > ms-$TM.sql
echo dump db pims_hf as pims_hf-$TM.sql
/usr/bin/mysqldump -h127.0.0.1 -uroot -ppass --single-transaction --master-data=2 --databases ms_workflow > pims_hf_workflow-$TM.sql
echo dump db ms_workflow as pims_hf_workflow-$TM.sql
/usr/bin/mysqldump -h127.0.0.1 -uroot -ppass --single-transaction --master-data=2 --databases files > files-$TM.sql
echo dump db filesrv as files-$TM.sql
# delete backup files which 30 days before than today
find $BACKUP_FOLDER/* -type f -mtime +30 -name "*.zip" -exec rm {} \;
# compress
cd $SOURCE_FOLDER
zip -q -r $BACKUP_FOLDER/db-$TM.zip db
zip -q -r $BACKUP_FOLDER/files-new.zip files
echo zip $SOURCE_FOLDER files and backup to $BACKUP_FOLDER end
# Call the system method send notice msg to Dingding notification curl -X POST -d "templateCode=003&content=The file backup is successful. The backup file is saved in this directory: $BACKUP_FOLDER" http://127.0.0.1:8080/admin/do/notify/dingding
echo -e end backup files at $TM '\n\n\n'