open source license scanner (heuristic, regular expression matches in subdirs) [closed]

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开发者_JS百科

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Assume you have a small collection of WebCMS assembled, subdirs in ~/www/test/ or so. And now you want to quickly/crude scan and detect the license in each project.

Is there a simple grep/perl/regex scanner which can guess the used licenses? Doesn't need to be exact or reliable, just for getting a rough overview, and just needs to inspect directory-wise.

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ohcount, the tool http://ohloh.net/ uses to extract various metrics like number of lines per programming language from source code, also happens to have quite a lot of seemingly good heuristics to detect licenses. I haven't used it myself, but it seems to be exactly what you're looking for.