added backup disk and backup folder directory

backup

@@ -0,0 +1,43 @@
+#!/bin/sh
+
+if [ "$(id -u)" != "0" ]; then
+    echo "You must be root"
+    exit 1
+fi
+
+create_backup() {
+    disk=$1
+    archive=$2
+    dd if=$disk status=progress | gzip -9 > $archive
+}
+
+restore_backup() {
+    archive=$1
+    disk=$2
+    gzip -dc $archive | dd of=$disk status=progress
+}
+
+print_help() {
+    printf "usage:\n\t$0 (create|restore)\nexample:\n\t$0 create (disk) (archive)\n\t$0 restore (archive) (disk)\n"
+}
+
+case "$1" in
+    "create")
+        if [[ "$2" == "" || "$3" == "" ]]; then
+            print_help
+            exit 1
+        fi
+        create_backup $2 $3
+        ;;
+    "restore")
+        if [[ "$2" == "" || "$3" == "" ]]; then
+            print_help
+            exit 1
+        fi
+        restore_backup $2 $3
+        ;;
+    *)
+        print_help
+        ;;
+esac
+

backup_folder

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+if [ "$(id -u)" != "0" ]; then
+    echo "You must be root"
+    exit 1
+fi
+
+create_backup() {
+    directory=$1
+    filename=$2
+    mksquashfs $directory $filename
+}
+
+restore_backup() {
+    filename=$1
+    directory=$2
+    unsquashfs -f -d $directory $filename
+}
+
+print_help() {
+    printf "usage:\n\t$0 (create|restore)\nexample:\n\t$0 create (folder|directory) (filename)\n\t$0 restore (filename) (folder|directory)\n"
+}
+
+case "$1" in
+    "create")
+        if [[ "$2" == "" || "$3" == "" ]]; then
+            print_help
+            exit 1
+        fi
+        create_backup $2 $3
+        ;;
+    "restore")
+        if [[ "$2" == "" || "$3" == "" ]]; then
+            print_help
+            exit 1
+        fi
+        restore_backup $2 $3
+        ;;
+    *)
+        print_help
+        ;;
+esac