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Linux: copy and create destination dir if it does not exist

... oops, right. But then, test may be a bash builtin (especially if written as [[ -d "$d" ]]) and mkdir can not ;-) – Michael Krelin - hacker Oct 7 '09 at 17:00 1 ...
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Efficient way to apply multiple filters to pandas DataFrame or Series

...s to apply several filters to a Pandas DataFrame or Series object. Essentially, I want to efficiently chain a bunch of filtering (comparison operations) together that are specified at run-time by the user. ...
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How can I search for a multiline pattern in a file?

I needed to find all the files that contained a specific string pattern. The first solution that comes to mind is using find piped with xargs grep : ...
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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?

...gsql-control-structures.html, example 40-2 right at the bottom. That's usually the easiest way. You can do some magic with rules, but it's likely going to be a lot messier. I'd recommend the wrap-in-function approach over that any day. This works for single row, or few row, values. If you're deali...
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How to convert an array into an object using stdClass() [duplicate]

..., 'varsta' => 25) ); If you want to see is this stdClass object just call this print_r($clasa); If you want to convert an array to object code will be $arr = array('a'=>'apple','b'=>'ball'); $arr = (object) $arr; You don't need to use stdClass. It will automatically converted to st...
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An established connection was aborted by the software in your host machine

... sometimes fails to establish a connection with the Emulator, so this can happen in some cases. share | improve this answer | follow | ...
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How exactly do Django content types work?

I'm really having a difficult time grasping the concept of Django's content types. It feels very hackish and, ultimately, against how Python tends to do things. That being said, if I'm going to use Django then I have to work within the confines of the framework. ...
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urllib2.HTTPError: HTTP Error 403: Forbidden

...Error, e: print e.fp.read() content = page.read() print content Actually, it works with just this one additional header: 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', share | ...
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Visual Studio window which shows list of methods

...io, is there a window which shows list of methods in the active class? A small window like the Solution Explorer would be great. In Eclipse, there is one. ...
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How do I specify different Layouts in the ASP.NET MVC 3 razor ViewStart file?

... One potential problem with LayoutInjecterAttribute: It is called before the controller's OnException method. So, if the controller provides a view result during exception handling, the layout won't be set. – Jeff Sharp Apr 21 '14 at 17:03 ...