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How do I fetch lines before/after the grep result in bash?
...I'm very new to bash programming. I want a way to search in a given Text. For that I use grep function:
4 Answers
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Example for sync.WaitGroup correct?
Is this example usage of sync.WaitGroup correct? It gives the expected result, but I am unsure about the wg.Add(4) and the position of wg.Done() . Does it make sense to add the four goroutines at once with wg.Add() ?
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How to save a dictionary to a file?
...roblem with changing a dict value and saving the dict to a text file (the format must be same), I only want to change the member_phone field.
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#ifdef in C#
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#if DEBUG
bool bypassCheck=TRUE_OR_FALSE;//i will decide depending on what i am debugging
#else
bool bypassCheck = false; //NEVER bypass it
#endif
Make sure you have the checkbox to define DEBUG checked in your build properties.
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How do I change read/write mode for a file using Emacs?
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M-x toggle-read-only
or in more recent versions of Emacs
M-x read-only-mode
On my Windows box, that amounts to Alt-x to bring up the meta prompt and typing "toggle-read-only" to call the correct elisp function.
If you are using the default...
Sell me on const correctness
...o use const as often as possible? It seems to me that using const can be more of a pain than a help in C++. But then again, I'm coming at this from the python perspective: if you don't want something to be changed, don't change it. So with that said, here are a few questions:
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Check if an element is present in an array [duplicate]
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ECMAScript 2016 incorporates an includes() method for arrays that specifically solves the problem, and so is now the preferred method.
[1, 2, 3].includes(2); // true
[1, 2, 3].includes(4); // false
[1, 2, 3].includes(1, 2); // false (...
Discard Git Stash Pop
...p and now I have a ton of conflicts. I had committed all my recent code before the git stash pop , so is there a way to go back to the last commit and get rid of all the conflicts and code the git stash pop injected?
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ASP.NET Identity's default Password Hasher - How does it work and is it secure?
I am wondering wether the Password Hasher that is default implemented in the UserManager that comes with MVC 5 and ASP.NET Identity Framework, is secure enough? And if so, if you could explain to me how it works?
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How do you log server errors on django sites
...ith the development I can just set settings.DEBUG to True and if an error occures I can see it nicely formatted, with good stack trace and request information.
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