Daily Archives: 13/06/2011



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Examples Note: A “.tar” file is not a compressed files, it is a collection of files within a single file uncompressed. If the file is a .tar.gz (“tarball”) or “.tgz” file it is a collection of files that is compressed. If you are looking to compress a file you would […]

Linux / Unix tar command


What are UPCs, EANs, ISBNs. and ASINs? UPC Universal Product Code (UPC) is a 12-digit bar code used extensively for retail packaging in United States. EAN The European Article Number (EAN) is a barcode standard, a 12- or 13-digit product identification  code. Each EAN uniquely identifies the product, manufacturer, and […]

What are UPCs, EANs, ISBNs. and ASINs