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Apply .gitignore on an existing repository already tracking large number of files

.... For example, mine looks like this: ``` OS junk files [Tt]humbs.db *.DS_Store #Visual Studio files *.[Oo]bj *.user *.aps *.pch *.vspscc *.vssscc *_i.c *_p.c *.ncb *.suo *.tlb *.tlh *.bak *.[Cc]ache *.ilk *.log *.lib *.sbr *.sdf *.pyc *.xml ipch/ obj/ [Bb]in [Dd]ebug*/ [Rr]elease*/ Ankh.NoLoad ...
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How to get overall CPU usage (e.g. 57%) on Linux [closed]

... + idle = 100%. So maybe something like: grep 'cpu ' /proc/stat | awk '{cpu_usage=($2+$4)*100/($2+$4+$5)} END {print cpu_usage "%"}' – vimdude Jun 2 '14 at 18:51 ...
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Fastest Way to Serve a File Using PHP

...he web server to do it. The basic php code is : header("X-Sendfile: $file_name"); header("Content-type: application/octet-stream"); header('Content-Disposition: attachment; filename="' . basename($file_name) . '"'); Where $file_name is the full path on the file system. The main problem with thi...
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Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?

...way to do an operation" as a constraint. Rightly so, because for example to_string and lambdas are both conveniences for things you could do already. I suppose one could interpret "only one way to do an operation" very loosely to allow both of those, and at the same time to allow almost any duplicat...
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How to have stored properties in Swift, the same way I had on Objective-C?

...class ObjectAssociation<T: AnyObject> { private let policy: objc_AssociationPolicy /// - Parameter policy: An association policy that will be used when linking objects. public init(policy: objc_AssociationPolicy = .OBJC_ASSOCIATION_RETAIN_NONATOMIC) { self.policy = polic...
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How can I use map and receive an index as well in Scala?

...", "had", "a", "little", "lamb").zipWithIndex.foreach( (t) => println(t._2+" "+t._1) ) share | improve this answer | follow | ...
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How can I use if/else in a dictionary comprehension?

...ict comprehension must have two expressions, separated by a colon: { (some_key if condition else default_key):(something_if_true if condition else something_if_false) for key, value in dict_.items() } The final if clause acts as a filter, which is different from having the conditional e...
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How to load a xib file in a UIView

...eView: UITableView) -> Int { return 1 } func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { return 5 } func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { let restaurantTa...
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Python: One Try Multiple Except

... Yes, it is possible. try: ... except FirstException: handle_first_one() except SecondException: handle_second_one() except (ThirdException, FourthException, FifthException) as e: handle_either_of_3rd_4th_or_5th() except Exception: handle_all_other_exceptions() See: htt...
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Efficient evaluation of a function at every cell of a NumPy array

...ze(f) # or use a different name if you want to keep the original f result_array = f(A) # if A is your Numpy array It's probably better to specify an explicit output type directly when vectorizing: f = np.vectorize(f, otypes=[np.float]) ...