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How to check if command line tools is installed

I have a macbook pro with OS X 10.8.2. XCode is installed. I know this as it appears in the Applications directory. There are also the xcodebuild and xcode-select files in /usr/bin I need to know if the command line tools is installed. Is there a command for it? What can I do to see if XCode CLT is ...
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Chrome hangs after certain amount of data transfered - waiting for available socket

... case there were many tabs open and polling to server, closed all tabs and now it is good. – igaurav Aug 22 '17 at 7:06 ...
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Node.js Web Application examples/tutorials [closed]

...ailable on github. The competition site doesn't appear to be working right now, but I'm sure you could Google up a few entries to check out. share | improve this answer | fol...
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Storyboard - refer to ViewController in AppDelegate

...roject and specify the name of the new class in the IB identity inspector. Now how am I going to refer to this ViewController programmatically from the AppDelegate? I've made a variable with the relevant class and turned it into an IBOutlet property, but I don't see any way of being able to refer to...
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Unit testing for C++ code - Tools and methodology [closed]

...king on a large c++ system that is has been in development for a few years now. As part of an effort to improve the quality of the existing code we engaged on a large long-term refactoring project. ...
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Is there a Rake equivalent in Python?

... Paver has a similar set of goals, though I don't really know how it compares. share | improve this answer | follow | ...
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Why is the default value of the string type null instead of an empty string?

...ublic static string EmptyNull(this string str) { return str ?? ""; } Now this works safely: string str = null; string upper = str.EmptyNull().ToUpper(); share | improve this answer ...
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Understanding ibeacon distancing

...ssi) over the calibrated transmitter power (txPower). The txPower is the known measured signal strength in rssi at 1 meter away. Each beacon must be calibrated with this txPower value to allow accurate distance estimates. While the distance estimates are useful, they are not perfect, and require ...
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What does new self(); mean in PHP?

... That's why PHP 5.3 introduces a new usage for the static keyword : it can now be used exactly where we used self in those examples : class MyParentClass { public static function getInstance() { return new static(); } } class MyChildClass extends MyParentClass { } $a = MyChildClas...
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How does Facebook disable the browser's integrated Developer Tools?

...roup and are annoyed by this, sorry. I tried to make the old opt-out page (now help page) as simple as possible while still being scary enough to stop at least some of the victims. The actual code is pretty similar to @joeldixon66's link; ours is a little more complicated for no good reason. Chro...