A simple shell to mount, unmount and view status of LUKS disk encryption based parition under Linux.

luks-encrypt.sh

#!/bin/bash
#
# A simple shell to mount, unmount and view status of disk encryption based
# parition under Linux.
# Tested on Debian, Fedora, and Arch base desktops.
# ----------------------------------------------------------------------------
# Author: Nicocchi
# (c) 2019 Jeremy Boggs under GNU GPL v2.0+
# ----------------------------------------------------------------------------
# Last updated: 01/20/2019
# ----------------------------------------------------------------------------

 echo " "

### commands ###
_crypt="/sbin/cryptsetup"
_vg="/sbin/vgscan"
_vgc="/sbin/vgchange"
_mnt="/bin/mount"

### Partition specific settings ###
# Modify the amount of partitions, names and device locations to fit your needs.
# _name = name of the partition
# _mntsA = location for the mapper. This will be created if does not exist.
# _mntdA = location where you want to mount the partition. Does not create
#          if does not exist
# ----------------------------------------------------------------------------
### Partition One ###
_deviceA="/dev/sdd"
_nameA="games"
_mntsA="/dev/mapper/games "
_mntdA="/mnt/Games/"

### Partition Two ###
_deviceB="/dev/sdb"
_nameB="library"
_mntsB="/dev/mapper/library "
_mntdB="/mnt/Library/"

### Partition Three ###
_deviceC="/dev/sdc"
_nameC="development"
_mntsC="/dev/mapper/development "
_mntdC="/mnt/Development"

# ----------------------------------------------------------------------------
### Check user arguments ###
# ----------------------------------------------------------------------------
### Default argument ###
if [[ ! $1 ]]; then
    echo " "
    echo "This script unmounts and mounts LUKS partitions enscribed in the script."
    echo "-Author: Nicocchi (aka Jeremy Boggs)"
    echo " "
    echo "lukdevice options:"
    echo "      -u | unmount all devices"
    echo "      -m | mount all devices"
    echo "      -h | help"
    echo "      -s | check device status"
    echo " "
    echo "Type ./luksdevice -h for more information about luksdevice options"
    echo "Example: ./luksdevice -u to unmount all devices"
    echo " "
### Unmount argument ###
elif [ "$1" = "-u" ]; then
    echo " "
    echo "Unmounting devices..."
    echo " "
    sleep 1

### Partition One ###
    if grep -qs '/mnt/Games ' /proc/mounts; then
        {
            umount ${_mntdA}
            ${_crypt} luksClose ${_mntsA}

            echo "Unmount of" ${_deviceA} "successful"
        } || {
            echo "Unmounting of" ${_deviceA} "failed."
        }
    else
        echo ${_deviceA} "is already unmounted"
    fi

### Partition Two ###
    if grep -qs '/mnt/Library ' /proc/mounts; then
        {
            umount ${_mntdB}
            ${_crypt} luksClose ${_mntsB}

            echo "Unmount of" ${_deviceB} "successful"
        } || {
            echo "Unmounting of" ${_deviceB} "failed."
        }
    else
        echo ${_deviceB} "is already unmounted"
    fi

### Partition Three ###
    if grep -qs '/mnt/Development ' /proc/mounts; then
        {
            umount ${_mntdC}
            ${_crypt} luksClose ${_mntsC}

            echo "Unmount of" ${_deviceC} "successful"
        } || {
            echo "Unmounting of" ${_deviceC} "failed."
        }
    else
        echo ${_deviceC} "is already unmounted"
    fi
### Feedback ###
    if grep -qs '/mnt/Games ' /proc/mounts && grep -qs '/mnt/Library ' /proc/mounts && grep -qs '/mnt/Development ' /proc/mounts; then
        echo " "
        echo "All devices are mounted"
    else
        echo " "
        echo "All devices are unmounted"
    fi
### Mount argument ###
elif [ "$1" = "-m" ]; then
    echo " "
    echo "Mounting devices..."
    echo " "
    sleep 1

### Partition One ###
    if grep -qs '/mnt/Games ' /proc/mounts; then
        echo ${_deviceA} "is already mounted."
    else
        {
            echo
            ${_crypt} luksOpen ${_deviceA} $_nameA

            echo
            ${_vg} --mknodes
            ${_vgc} -ay

            echo
            ${_mnt} ${_mntsA} ${_mntdA}

            echo ${_deviceA} "successfully mounted to" ${_mntdA}
        } || {
            echo "Failed to decrypt/mount" ${_deviceA}
        }
    fi

### Partition One ###
    if grep -qs '/mnt/Library ' /proc/mounts; then
        echo ${_deviceB} "is already mounted."
    else
        {
            echo
            ${_crypt} luksOpen ${_deviceB} $_nameB

            echo
            ${_vg} --mknodes
            ${_vgc} -ay

            echo
            ${_mnt} ${_mntsB} ${_mntdB}

            echo ${_deviceB} "successfully mounted to" ${_mntdB}
        } || {
            echo "Failed to decrypt/mount" ${_deviceB}
        }
    fi

### Partition One ###
    if grep -qs '/mnt/Development ' /proc/mounts; then
        echo ${_deviceC} "is already mounted."
    else
        {
            echo
            ${_crypt} luksOpen ${_deviceC} $_nameC

            echo
            ${_vg} --mknodes
            ${_vgc} -ay

            echo
            ${_mnt} ${_mntsC} ${_mntdC}

            echo ${_deviceC} "successfully mounted to" ${_mntdC}
        } || {
            echo "Failed to decrypt/mount" ${_deviceC}
        }
    fi

### Feedback ###
    if grep -qs '/mnt/Games ' /proc/mounts && grep -qs '/mnt/Library ' /proc/mounts && grep -qs '/mnt/Development ' /proc/mounts; then
        echo " "
        echo "All devices are mounted"
    else
        echo " "
        echo "All devices are unmounted"
    fi
### Help argument ###
elif [ "$1" = "-h" ]; then
    echo " "
    echo "This script unmounts and mounts LUKS partitions enscribed in the script."
    echo " "
    echo "-Author: Nicocchi (aka Jeremy Boggs)"
    echo "lukdevice options:"
    echo "      -u | unmount all devices"
    echo "      -m | mount all devices"
    echo "      -h | help"
    echo "      -s | check device status"
    echo " "
    echo "Type luksdevice -h for more information about luksdevice options"
    echo "Example: ./luksdevice -u to unmount all devices"
    echo " "
### Status argument ###
elif [ "$1" = "-s" ]; then
    echo " "
    echo "Checking status of devices..."
    echo " "
    sleep 1

### Partition One ###
    if grep -qs '/mnt/Games ' /proc/mounts; then
        echo ${_deviceA} "is mounted to" ${_mntdA}
    else
        echo ${_deviceA} "is not mounted."
    fi

### Partition Two ###
    if grep -qs '/mnt/Library ' /proc/mounts; then
        echo ${_deviceB} "is mounted to" ${_mntdB}
    else
        echo ${_deviceB} "is not mounted."
    fi

### Partition Three ###
    if grep -qs '/mnt/Development ' /proc/mounts; then
        echo ${_deviceC} "is mounted to" ${_mntdC}
    else
        echo ${_deviceC} "is not mounted."
    fi
    echo " "

# If wrong parameter was specific, spout error
else
    echo "Unknown parameter"
fi