How to archive the `pub/media/catalog` folder into a multi-part RAR archive?

See also:

Cleanup

• How to delete garbage files?
• How to find big folders?
• How to find big orphaned files?

Archiving

• All files
• Magento 2
  • without not important for development files
  • without not important for development files and product images
  • The media folder
    • with product images
    • without product images
    • a multi-part RAR archive
• Magento 1
  • without not important for development files
  • The media folder
    • with product images