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> The Google codebase includes approximately one billion files

> approximately two billion lines of code in nine million unique source files

So what are the other ~991 million files? I don't doubt that there's a lot of binary files, but what else? Also what does "unique" source files mean?

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It's the next sentence in the article. > The total number of files also includes source files copied into release branches, files that are deleted at the latest revision, configuration files, documentation, and supporting data files; see the table here for a summary of Google's repository statistics from January 2015.

> see the table here for a summary of Google's repository statistics from January 2015.

Is it just me or is there not actually a table there?

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