Shell script to backup a folder on a Blu-ray disc

bluray_backup.sh

#!/bin/bash

# Script to backup a folder to a Blu-ray medium

# 1) Change /dev/sr1 (if /dev/sr1 is not [the device name of] your bluray burning device)
# 2) Change ~/folder_to_backup into you choice of folder to backup (be aware of BR capacity, typically max 25 GiB)
# 3) Prior to running the script, installation of 'xorriso' is required and probably available in your distro packages

# Credit goes to Thomas Schmitt for providing a helpful explanation of xorriso.

xorriso -for_backup \
        -outdev /dev/sr1 \
        -map ~/folder_to_backup \
        -commit \
        -eject all \
        -end