Now we create a little script to backup via RSYNC

nano /srv/backup/backup.sh

You will need to create the appropriate backup locations for the script to use.

#!/bin/bash

# =====================================================================
# Script to Rsync backup
#
# V1.00 2024-03-20 Initial Release (Scotty)
# =====================================================================
source_file="backup"
date=$(date +"%Y-%m-%d")
new_filename="${source_file%.*}_${date}.log"


rsync -azAXPH --stats --delete --exclude='/swap.img' --exclude='/srv/*' --exclude='/dev/*' --exclude='/proc/*' --exclude='/sys/*' --exclude='/tmp/*' --exclude='/run/*' --exclude='/mnt/*' --exclude='/media/*' --exclude='/lost+found/' / /srv/backup/cronbackup/backup_root > /var/log/backup/$new_filename
rsync -azAXPH --stats --delete /srv/data/ /srv/backup/cronbackup/backup_data/  >> /var/log/backup/$new_filename
rsync -azAXPH --stats --delete /srv/media/ /srv/backup/cronbackup/backup_media/ >> /var/log/backup/$new_filename

# Send a mail the backup has run
mail -s "Backup Completed" mark@scottworld.net < /var/log/backup/$new_filename

You can now add a cron job to run the script.

crontab -e

Add the following lines

 00 03 * * 7 /srv/backup/backup.sh
 00 03 * * 3 /srv/backup/backup.sh

This will run a backup on Sunday morning and Wednesday Morning at 03:00 am