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Why does Unicorn need to be deployed together with Nginx?
I would like to know the difference between Nginx and Unicorn. As far as I understand, Nginx is a web server while Unicorn is a Ruby HTTP server.
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Piping both stdout and stderr in bash?
...t newer versions of bash have the &> operator, which (if I understand correctly), redirects both stdout and stderr to a file ( &>> appends to the file instead, as Adrian clarified).
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How can I create directory tree in C++/Linux?
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With C++17 or later, there's the standard header <filesystem> with
function
std::filesystem::create_directories
which should be used in modern C++ programs.
The C++ standard functions do not have the POSIX-specific explicit
permissions (mode) argument, t...
How to create .ipa file using Xcode?
...lick Product > Archive > once this is complete open up the Organiser and click the latest version.
Step 3:
Click on Export... option from right side of organiser window.
Step 4:
Select a method for export > Choose correct signing > Save to Destination.
Xcode 10.0
Step 3:
From R...
The difference between the Runnable and Callable interfaces in Java
What is the difference between using the Runnable and Callable interfaces when designing a concurrent thread in Java, why would you choose one over the other?
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Haskell testing workflow
I just started a new Haskell project and wanted to set up a good testing workflow from the beginning. It seems like Haskell has a lot of excellent and unique testing tools and many different ways to integrate them.
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How to read/process command line arguments?
I am originally a C programmer. I have seen numerous tricks and "hacks" to read many different arguments.
17 Answers
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Generate list of all possible permutations of a string
...about generating a list of all possible permutations of a string between x and y characters in length, containing a variable list of characters.
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Merge multiple lines (two blocks) in Vim
I'd like to merge two blocks of lines in Vim, i.e. take lines n..m and append them to lines a..b . If you prefer a pseudocode explanation: [a[i] + b[i] for i in min(len(a), len(b))]
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Is it possible to define more than one function per file in MATLAB, and access them from outside tha
... the same name as the m-file, but for clarity it should. When the function and file name differ, the file name must be used to call the main function.
All subsequent functions in the m-file, called local functions (or "subfunctions" in the older terminology), can only be called by the main function...