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Pentaho Data Integration 4 Cookbook by María Carina Roldán, Adrián Sergio Pulvirenti

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Working with ZIP files

Compressed files are a convenient storage method. If you have many files or your files are very large, compressing them makes it easier to store them and transfer them through e-mails or between different media (PC, USB devices, and so on).

For example, consider managing the log information from a web server, which generates a new text file every day with data about the web traffic (pages, IPs, operations, status codes, and so on). After several months, you have a lot of files with a substantial amount of information.

Now, suppose that you want to create a local copy of those files. You don't have access to the server from your computer, so you have to copy the files onto some media and then onto your computer. As the size ...

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