chore(scripts): backup scripts tweaks and license

local/bin/x-backup-folder

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+#
+# Backup a folder with a timestamp
+# Usage: x-backup-folder folder_to_backup [filename]
+# If filename is not provided, folder_to_backup will be used
+# Example: x-backup-folder ~/Documents/MyFolder
+#
+# Copyright (c) 2022 Ismo Vuorinen. All Rights Reserved.
+# Licensed under the MIT license.
+
+DIRECTORY=$1
+FILENAME=$2
+
+if [ -z "${DIRECTORY}" ]; then
+  echo "DIRECTORY (first argument) is missing"
+  echo "Usage: $0 folder_to_backup"
+  exit
+fi
+
+if [ -z "${FILENAME}" ]; then
+  FILENAME=$DIRECTORY
+fi
+
+FILENAME=$(
+  ${FILENAME} \
+    | tr '/' _ \
+    | iconv -t ascii//TRANSLIT \
+    | sed -r s/[^a-zA-Z0-9]+/_/g \
+    | sed -r s/^_+\|-+$//g
+)
+
+TIMESTAMP=$(date "+%Y%m%d_%H%M%S")
+FILENAME_TIMESTAMP="${FILENAME}_${TIMESTAMP}"
+
+tar cvzf "${FILENAME_TIMESTAMP}.tar.gz" "${DIRECTORY}/"