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Returning value from called function in a shell script

I want to return the value from a function called in a shell script. Perhaps I am missing the syntax. I tried using the global variables. But that is also not working. The code is: ...
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How to get the name of enumeration value in Swift?

... on each case to return a string literal. In addition, this works automatically for any enum, even if no raw-value type is specified. debugPrint(_:) & String(reflecting:) can be used for a fully-qualified name: debugPrint(city) // prints "App.City.Melbourne" (or similar, depending on the full ...
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Linear Regression and group by in R

... fits <- lmList(response ~ year | state, data=d) fits #------------ Call: lmList(formula = response ~ year | state, data = d) Coefficients: (Intercept) year CA -1.34420990 0.17139963 NY 0.00196176 -0.01852429 Degrees of freedom: 20 total; 16 residual Residual standard error: 0.820...
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Is there an exponent operator in C#?

...o in most programs, and it doesn't seem justified to add an operator when calling Math.Pow() is simple. You asked: Do I have to write a loop or include another namespace to handle exponential operations? If so, how do I handle exponential operations using non-integers? Math.Pow supports double p...
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Can C++ code be valid in both C++03 and C++11 but do different things?

... // #1 void f(...); // #2 template<int N> void g() { f(0*N); // Calls #2; used to call #1 } Rounded results after integer division and modulo In C++03 the compiler was allowed to either round towards 0 or towards negative infinity. In C++11 it is mandatory to round towards 0 int i = (-1) ...
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How does one unit test routes with Express?

...rocess of learning Node.js and have been playing around with Express . Really like the framework;however, I'm having trouble figuring out how to write a unit/integration test for a route. ...
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How to save an image to localStorage and display it on the next page?

So, basically, I need to upload a single image, save it to localStorage, then display it on the next page. 7 Answers ...
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Setting variable to NULL after free

... int *nPtr=NULL;. Now, I would agree that this would be redundant, with a malloc following right in the next line. However, if there is code between the declaration and the first initialization, somebody might start using the variable even though it has no value yet. If you null-initialize, you get ...
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Use different Python version with virtualenv

... system currently running with python 2.5.4. I got virtualenv properly installed, everything is working fine. Is there a possibility that I can use a virtualenv with a different version of Python? ...
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Programmatically get the version number of a DLL

Is it possible to get the version number programmatically from any .NET DLL? 10 Answers ...