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Expansion of variables inside single quotes in a command in Bash

I want to run a command from a bash script which has single quotes and some other commands inside the single quotes and a variable. ...
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What's the concept of and differences between Framebuffer and Renderbuffer in OpenGL?

I'm confused about concept of Framebuffer and Renderbuffer. I know that they're required to render, but I want to understand them before use. ...
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Why use bzero over memset?

In a Systems Programming class I took this previous semester, we had to implement a basic client/server in C. When initializing the structs, like sock_addr_in , or char buffers (that we used to send data back and forth between client and server) the professor instructed us to only use bzero and ...
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What is the order of precedence for CSS?

I'm trying to figure out why one of my css classes seems to override the other (and not the other way around) 8 Answers ...
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Equivalent C++ to Python generator pattern

I've got some example Python code that I need to mimic in C++. I do not require any specific solution (such as co-routine based yield solutions, although they would be acceptable answers as well), I simply need to reproduce the semantics in some manner. ...
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Calling Java varargs method with single null argument?

If I have a vararg Java method foo(Object ...arg) and I call foo(null, null) , I have both arg[0] and arg[1] as null s. But if I call foo(null) , arg itself is null. Why is this happening? ...
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What's the use/meaning of the @ character in variable names in C#?

I discovered that you can start your variable name with a '@' character in C#. In my C# project I was using a web service (I added a web reference to my project) that was written in Java. One of the interface objects defined in the WSDL had a member variable with the name "params". Obviously this i...
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How to get a dependency tree for an artifact?

dependency:tree can be used to see the dependency tree for a given project. But what I need is to see the dependency tree for a 3rd party artifact. ...
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Why is the C++ STL is so heavily based on templates? (and not on *interfaces*)

I mean, aside from its obligating name (the Standard Template Library)... 13 Answers 1...
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How to revert multiple git commits?

I have a git repository that looks like this: 13 Answers 13 ...