Initial commit 🚀

backup.sh

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+#!/usr/bin/env bash
+
+# IMPORTANT:
+# Run the install-little-backup-box.sh script first
+# to install the required packages and configure the system.
+
+# Specify devices and their mount points
+STORAGE_DEV="sda1"
+STORAGE_MOUNT_POINT="/media/storage"
+CARD_DEV="sdb1"
+CARD_MOUNT_POINT="/media/card"
+
+# Set the ACT LED to heartbeat
+sudo sh -c "echo heartbeat > /sys/class/leds/led0/trigger"
+
+# Wait for a USB storage device (e.g., a USB flash drive)
+STORAGE=$(ls /dev/* | grep $STORAGE_DEV | cut -d"/" -f3)
+while [ -z ${STORAGE} ]
+  do
+  sleep 1
+  STORAGE=$(ls /dev/* | grep $STORAGE_DEV | cut -d"/" -f3)
+done
+
+# When the USB storage device is detected, mount it
+mount /dev/$STORAGE_DEV $STORAGE_MOUNT_POINT
+
+# Set the ACT LED to blink at 1000ms to indicate that the storage device has been mounted
+sudo sh -c "echo timer > /sys/class/leds/led0/trigger"
+sudo sh -c "echo 1000 > /sys/class/leds/led0/delay_on"
+
+# Wait for a card reader or a camera
+CARD_READER=$(ls /dev/* | grep $CARD_DEV | cut -d"/" -f3)
+until [ ! -z $CARD_READER ]
+  do
+  sleep 1
+  CARD_READER=$(ls /dev/sd* | grep $CARD_DEV | cut -d"/" -f3)
+done
+
+# If the card reader is detected, mount it and obtain its UUID
+if [ ! -z $CARD_READER ]; then
+  mount /dev/$CARD_DEV $CARD_MOUNT_POINT
+  # # Set the ACT LED to blink at 500ms to indicate that the card has been mounted
+  sudo sh -c "echo 500 > /sys/class/leds/led0/delay_on"
+  # Create the CARD_ID file containing a random 8-digit identifier if doesn't exist
+  if [ ! -f $CARD_MOUNT_POINT/CARD_ID ]; then
+    < /dev/urandom tr -cd 0-9 | head -c 8 > $CARD_MOUNT_POINT/CARD_ID
+  fi
+  # Read the 8-digit identifier number from the CARD_ID file on the card
+  # and use it as a directory name in the backup path
+  read -r ID < $CARD_MOUNT_POINT/CARD_ID
+  BACKUP_PATH=$STORAGE_MOUNT_POINT/"$ID"
+# Perform backup using rsync
+rsync -avh $CARD_MOUNT_POINT/ $BACKUP_PATH
+# Turn off the ACT LED to indicate that the backup is completed
+sudo sh -c "echo 0 > /sys/class/leds/led0/brightness"
+fi
+# Shutdown
+sync
+shutdown -h now