Automatically mount (without root) and copy content helper script

automount_copy.sh

#!/bin/sh
# Findmount of OR (Mount and Unmount) a given block device
# ask for user input and 
# rsync it's entire content to a specified path
# and do it without root privileges
# Requires: rsync, gvfs-mount, grep with '-c' (count option), awk, ✨Unicode
# Useful for quickly copying photos from a camera to a specified directory
# and unmounting (but not deleting content) properly.
set -ue

# Target directory/path into which content of DEV is going to be copied
TARGET="${2}"
# /dev/sdXY1
DEV="${1}"

# check if device is 'special block' and grep count if mounted 
if [ -b "${DEV}" ] && [ $(mount | grep "${DEV}" -c) -eq 0 ]; then
   MNT=$(gvfs-mount -d "${DEV}" | awk '{print $4}')
   UMOUNT="1"
else
   MNT=$(mount | awk -v dev=${DEV} '$1 == dev {print $3; exit}')
   UMOUNT="0"
fi

# Fail if MNT couldn't got set
[ -n "${MNT}" ]

# Ask if user rsync should happen
echo -n "rsync -acv \"${MNT}\" \"${TARGET}\"? (Y/n): "
read answer
[ "${answer}" = "n" ] || rsync -acv "${MNT}" "${TARGET}"

# Only Umount if unmounted earlier
echo "UMOUNT=${UMOUNT}"
[ "${UMOUNT}" -eq 1 ] && gvfs-mount -u "${MNT}"