Create fF

Improvements:
Simplified output: Displays folder size in the most appropriate human-readable unit.
Error handling: Checks if the provided directory exists.
Readable structure: Uses helper functions for size calculation and formatting.
Usability: Prints clear usage instructions when arguments are missing.

fF

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+# Script Name   : folder_size.py
+# Author        : Craig Richards (Simplified by Assistant)
+# Created       : 19th July 2012
+# Last Modified : 19th December 2024
+# Version       : 2.0.0
+
+# Description   : Scans a directory and subdirectories to display the total size.
+
+import os
+import sys
+
+def get_folder_size(directory):
+    """Calculate the total size of a directory and its subdirectories."""
+    total_size = 0
+    for root, _, files in os.walk(directory):
+        for file in files:
+            total_size += os.path.getsize(os.path.join(root, file))
+    return total_size
+
+def format_size(size):
+    """Format the size into human-readable units."""
+    units = ["Bytes", "KB", "MB", "GB", "TB"]
+    for unit in units:
+        if size < 1024 or unit == units[-1]:
+            return f"{size:.2f} {unit}"
+        size /= 1024
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: python folder_size.py <directory>")
+        sys.exit(1)
+
+    directory = sys.argv[1]
+
+    if not os.path.exists(directory):
+        print(f"Error: The directory '{directory}' does not exist.")
+        sys.exit(1)
+
+    folder_size = get_folder_size(directory)
+    print(f"Folder Size: {format_size(folder_size)}")
+
+if __name__ == "__main__":
+    main()