diff --git a/nbdcs b/nbdcs
new file mode 100755
index 0000000..8e8d088
--- /dev/null
+++ b/nbdcs
@@ -0,0 +1,84 @@
+#! /usr/bin/env bash
+FILE="$(realpath "${BASH_SOURCE[0]}")"
+NAME="$(basename "${FILE}")"
+
+ACTION_OPEN='open'
+ACTION_CLOSE='close'
+
+DATA_DIRECTORY='/data'
+CONTAINERS_DIRECTORY="${DATA_DIRECTORY}/containers"
+
+CONTAINERS_MAP_DIRECTORY='/dev/mapper'
+CONTAINERS_MOUNT_DIRECTORY='/media'
+
+function main {
+local action="${1}"
+local pass_phrase
+local container
+local container_name
+local container_file
+local container_map_file
+local container_mount_directory
+
+case "${action}" in
+    "${ACTION_OPEN}"|"${ACTION_CLOSE}")
+        shift
+        if [ "${1}" ]; then
+            if [ "${action}" == "${ACTION_OPEN}" ]; then
+                echo -n 'PassPhrase: '
+                read -s pass_phrase
+                echo
+            fi
+            for container in "${@}"; do
+                echo
+                case "${container}" in
+                    'p') container_name='private' ;;
+                    's') container_name='sensitive' ;;
+                    'w') container_name='work' ;;
+                    *) container_name="${container}" ;;
+                esac
+                container_file="${CONTAINERS_DIRECTORY}/${container_name}"
+                if [ -f "${container_file}" ]; then
+                    container_map_file="${CONTAINERS_MAP_DIRECTORY}/${container_name}"
+                    container_mount_directory="${CONTAINERS_MOUNT_DIRECTORY}/${container_name}"
+                    case "${action}" in
+                        "${ACTION_OPEN}")
+                            echo "${container_file} → ${container_map_file}"
+                            echo "${pass_phrase}" \
+                            | cryptsetup luksOpen "${container_file}" "${container_name}"
+                            if [ ${?} -eq 0 ]; then
+                                mkdir --parents "${container_mount_directory}"
+                                echo "${container_map_file} → ${container_mount_directory}"
+                                mount "${container_map_file}" "${container_mount_directory}"
+                            fi
+                        ;;
+                        "${ACTION_CLOSE}")
+                            echo "${container_map_file} ← ${container_mount_directory}"
+                            umount "${container_map_file}"
+                            if [ ${?} -eq 0 ]; then
+                                rmdir --ignore-fail-on-non-empty "${container_mount_directory}"
+                                echo "${container_file} ← ${container_map_file}"
+                                cryptsetup luksClose "${container_name}"
+                            fi
+                        ;;
+                    esac
+                else
+                    echo 'This path does not point to a file!'
+                fi
+            done
+        else
+            echo 'No container name provided!'
+        fi
+    ;;
+    *)
+        echo 'Usage:'
+        echo "${NAME} [${ACTION_OPEN}|${ACTION_CLOSE}] [p] [s] [w]"
+        echo
+        echo 'p = private'
+        echo 's = sensitive'
+        echo 'w = work'
+    ;;
+esac
+}
+
+main "${@}"