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Why should text files end with a newline?

I assume everyone here is familiar with the adage that all text files should end with a newline. I've known of this "rule" for years but I've always wondered — why? ...
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How often should you use git-gc?

... It depends mostly on how much the repository is used. With one user checking in once a day and a branch/merge/etc operation once a week you probably don't need to run it more than once a year. With several dozen developers working on ...
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How to create GUID / UUID?

I'm trying to create globally-unique identifiers in JavaScript. I'm not sure what routines are available on all browsers, how "random" and seeded the built-in random number generator is, etc. ...
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Is it possible to create static classes in PHP (like in C#)?

...You can have static classes in PHP but they don't call the constructor automatically (if you try and call self::__construct() you'll get an error). Therefore you'd have to create an initialize() function and call it in each method: <?php class Hello { private static $greeting = 'Hello'; ...
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Where can I set environment variables that crontab will use?

I have a crontab running every hour. The user running it has environment variabless in the .bash_profile that work when the user runs the job from the terminal, however, obviously these don't get picked up by crontab when it runs. ...
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Simpler way to create dictionary of separate variables?

I would like to be able to get the name of a variable as a string but I don't know if Python has that much introspection capabilities. Something like: ...
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Cannot run Eclipse; JVM terminated. Exit code=13

... It may just be the way the error shows (and not how it is written in the eclipse.ini file), but there is text in Eclipse.ini (Specifying the JVM) that says the following: The -vm option and its value (the path) must be on...
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How to link C++ program with Boost using CMake

What should my CMake file look like for linking my program with the Boost library under Ubuntu? 6 Answers ...
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Quickly create large file on a Windows system

In the same vein as Quickly create a large file on a Linux system , I'd like to quickly create a large file on a Windows system. By large I'm thinking 5 GB. The content doesn't matter. A built-in command or short batch file would be preferable, but I'll accept an application if there are no other...
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How to dynamically load a Python class

Given a string of a Python class, e.g. my_package.my_module.MyClass , what is the best possible way to load it? 10 Answers...