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How to loop through a directory recursively to delete files with certain extensions

I need to loop through a directory recursively and remove all files with extension .pdf and .doc . I'm managing to loop through a directory recursively but not managing to filter the files with the above mentioned file extensions. ...
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pinterest api documentation [closed]

Update Aug 2015: Pinterest provides it here now https://dev.pinterest.com/ 10 Answers ...
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What does “WARN Could not determine content-length of response body.” mean and how to I get rid of i

Since upgrading to Rails 3.1 I'm seeing this warning message in my development log: 9 Answers ...
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What does this symbol mean in JavaScript?

This is a collection of questions that come up every now and then about syntax in JavaScript. This is also a Community Wiki, so everyone is invited to participate in maintaining this list. ...
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ImportError in importing from sklearn: cannot import name check_build

I am getting the following error while trying to import from sklearn: 13 Answers 13 ...
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Undo git pull, how to bring repos to old state

Is there any way to revert or undo git pull so that my source/repos will come to old state that was before doing git pull ? I want to do this because it merged some files which I didn't want to do so, but only merge other remaining files. So, I want to get those files back, is that possible? ...
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Giving UIView rounded corners

My login view has a subview which has a UIActivityView and a UILabel saying "Signing In…". This subview has corners which aren't rounded. How can I make them round? ...
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What's the difference between VARCHAR and CHAR?

What's the difference between VARCHAR and CHAR in MySQL? 14 Answers 14 ...
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How to determine an object's class?

If class B and class C extend class A and I have an object of type B or C , how can I determine of which type it is an instance? ...
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Where is logback encoder pattern documentation

I've gone through all the documentation of logback and I can't find anywhere the documentation to configure the encoder's pattern when logging, such as: ...