#!/bin/sh
# be positioned in /mnt/sda10_btrfs_id5, which must be mounted
btrfs subvol snapshot -r fn-base		snapshots/base_`date +%F_%R`_r
btrfs subvol snapshot -r fn-base/downloads	snapshots/dnld_`date +%F_%R`_r
btrfs subvol snapshot -r fn-base/logs		snapshots/logs_`date +%F_%R`_r
# Note: Only readonly filesystems can be sent/received.