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What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?

... Running a command through /usr/bin/env has the benefit of looking for whatever the default version of the program is in your current environment. This way, you don't have to look for it in a specific place on the system, as those paths ma...
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HSL to RGB color conversion

...(which he attributes to a now defunct mjijackson.com, but is archived here and the original author has a gist - thanks to user2441511). The code is re-posted below: HSL to RGB: /** * Converts an HSL color value to RGB. Conversion formula * adapted from http://en.wikipedia.org/wiki/HSL_color_sp...
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AngularJS ui-router login authentication

I am new to AngularJS, and I am a little confused of how I can use angular-"ui-router" in the following scenario: 10 Answer...
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Make a Bash alias that takes a parameter?

...f #calls `myfunction` By the way, Bash functions defined in your .bashrc and other files are available as commands within your shell. So for instance you can call the earlier function like this $ myfunction original.conf my.conf ...
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In the shell, what does “ 2>&1 ” mean?

In a Unix shell, if I want to combine stderr and stdout into the stdout stream for further manipulation, I can append the following on the end of my command: ...
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Asp.net MVC ModelState.Clear

...w SomeModel { SomeString = "some value" }; return View(newModel); } And still the view renders with the original model. What's odd is, when I put a breakpoint in the view and examine the model, it has the changed value. But the response stream has the old values. Eventually I discovered ...
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Set up Heroku and GoDaddy? [closed]

... the same problem can fix it too. First I will explain how to setup Heroku and GoDaddy, then I will explain how to create a naked domain (www.example.com -> example.com). Setup Heroku and GoDaddy: In your project folder in terminal (on your computer) write heroku domains:add www.example.com (w...
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Why use a ReentrantLock if one can use synchronized(this)?

I'm trying to understand what makes the lock in concurrency so important if one can use synchronized (this) . In the dummy code below, I can do either: ...
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More elegant way of declaring multiple variables at the same time

...called function. This is certainly a reliable way to create dictionaries, and people seem to be at least accepting of this idiom, but I suspect that some may consider it Unpythonic. </disclaimer> Yet another approach, which is likely the most intuitive if you will be using this pattern fr...
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CSS/HTML: What is the correct way to make text italic?

...does not correspond to what HTML5 drafts actually say – which is obscure and varies by version, but no version suggests using i for book, song, album, or movie names (which would, debatably, be candidates for using cite). – Jukka K. Korpela Sep 1 '14 at 13:04...