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Validating parameters to a Bash script

...ant script as far as I can tell; it doesn't use any bashisms, which is actually important because /bin/sh on Ubuntu is actually dash these days, not bash. share | improve this answer | ...
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How to check if an NSDictionary or NSMutableDictionary contains a key?

... Don't you want to use valueForKey, as that would call objectForKey if necessary? – Raffi Khatchadourian Dec 21 '11 at 0:39 6 ...
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How to get the absolute coordinates of a view

...solute screen pixel coordinates of the top left corner of a view. However, all methods I can find such as getLeft() and getRight() don't work as they all seem to be relative to the parent of the view, thus giving me 0 . What is the proper way to do this? ...
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Separating class code into a header and cpp file

... So this means that all files that include your header file will "see" the private members. If for example you want to publish a lib and its header, you have to show the private members of the class? – Gauthier ...
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How do I get the current absolute URL in Ruby on Rails?

...equest.url instead of request.request_uri. This combines the protocol (usually http://) with the host, and request_uri to give you the full address. share | improve this answer | ...
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Is log(n!) = Θ(n·log(n))?

...) >= n/2 * log(n/2) = Omega(n log n). – Keith Randall Jan 19 '10 at 22:40 2 @Keith: I don't ge...
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How do I jump out of a foreach loop in C#?

...ould suggest the second example would be better rewritten to bool found = callFunctionInFirstCodeSnipper(list); // do stuff – ICR Jun 28 '11 at 17:01 add a comment ...
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How to debug .htaccess RewriteRule not working

...l 9 Using a high value for Level will slow down your Apache server dramatically! Use the rewriting logfile at a Level greater than 2 only for debugging! Level 9 will log almost every rewritelog detail. UPDATE Things have changed in Apache 2.4: FROM Upgrading to 2.4 from 2.2 The RewriteLog ...
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How can I shuffle an array? [duplicate]

...hout having it show up in loops such as for (i in arr). The following will allow you to call arr.shuffle() to shuffle the array arr: Object.defineProperty(Array.prototype, 'shuffle', { value: function() { for (let i = this.length - 1; i > 0; i--) { const j = Math.floor(Ma...
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Read Excel File in Python

...value)) except ValueError: pass finally: values.append(value) item = Arm(*values) items.append(item) for item in items: print item print("Accessing one single value (eg. DSPName): {0}".format(item.dsp_name)) print ...