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How to concatenate two strings to build a complete path

...r -p $SUBFOLD2 And if you want to use readline so you get completion and all that, add a -e to the call to read: read -e -p "Enter a directory: " BASEPATH share | improve this answer | ...
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How do I change the UUID of a virtual disk?

... I really wish VirtualBox will have some UI or a window that allow us to change this – fedmich Feb 11 '15 at 15:49 ...
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What is the difference between POST and GET? [duplicate]

...f a new resource or the updates of existing resources or both. So essentially GET is used to retrieve remote data, and POST is used to insert/update remote data. HTTP/1.1 specification (RFC 2616) section 9 Method Definitions contains more information on GET and POST as well as the other HTTP met...
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What's the best free C++ profiler for Windows? [closed]

... I tried working with it now, and didn't like it at all. I couldn't even understand how to get function's total time % (including the callees) which TrueTime could do fine 10 years ago. – Pavel Radzivilovsky Mar 13 '11 at 15:05 ...
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SQL MAX of multiple columns?

... I initially didn't understand VALUE(v) either. If you want to understand VALUE try this query which creates a virtual 1 column table: SELECT * FROM (VALUES (1), (5), (1)) as listOfValues(columnName) And this query which creates a ...
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Ruby on Rails: Where to define global constants?

... If your model is really "responsible" for the constants you should stick them there. You can create class methods to access them without creating a new object instance: class Card < ActiveRecord::Base def self.colours ['white', 'blue'...
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What is the difference between a directory and a folder?

...hs, which can vary between versions of Windows, and between individual installations. ... If one is referring to a container of documents, the term folder is more appropriate. The term directory refers to the way a structured list of document files and folders is stored on the computer. The distinct...
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What is Ruby's double-colon `::`?

... :: is basically a namespace resolution operator. It allows you to access items in modules, or class-level items in classes. For example, say you had this setup: module SomeModule module InnerModule class MyClass ...
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How to initialize/instantiate a custom UIView class with a XIB file in Swift

I have a class called MyClass which is a subclass of UIView , that I want to initialize with a XIB file. I am not sure how to initialize this class with the xib file called View.xib ...
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Why is there a `null` value in JavaScript?

In JavaScript, there are two values which basically say 'I don't exist' - undefined and null . 12 Answers ...