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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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getting the last item in a javascript object

If I have an object like: 14 Answers 14 ...
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How can I post an array of string to ASP.NET MVC Controller without a form?

I am creating a small app to teach myself ASP.NET MVC and JQuery, and one of the pages is a list of items in which some can be selected. Then I would like to press a button and send a List (or something equivalent) to my controller containing the ids of the items that were selected, using JQuery's P...
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What do 'statically linked' and 'dynamically linked' mean?

I often hear the terms 'statically linked' and 'dynamically linked', often in reference to code written in C , C++ or C# . What are they, what exactly are they talking about, and what are they linking? ...
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Create subdomains on the fly with .htaccess (PHP)

I am looking to create a system which on signup will create a subdomain on my website for the users account area. 9 Answer...
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How to move/rename a file using an Ansible task on a remote system

How is it possible to move/rename a file/directory using an Ansible module on a remote system? I don't want to use the command/shell tasks and I don't want to copy the file from the local system to the remote system. ...
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Using PHP with Socket.io

Is it possible to use Sockets.io on the client side and communicate with a PHP based application on the server? Does PHP even support such a 'long-lived connection' way of writing code? ...
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Cast an instance of a class to a @protocol in Objective-C

I have an object (a UIViewController) which may or may not conform to a protocol I've defined. 2 Answers ...
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How do I make a redirect in PHP?

Is it possible to redirect a user to a different page through the use of PHP? 30 Answers ...
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Remove 'a' from legend when using aesthetics and geom_text

How can I can remove the letter 'a' from the legend generated by this code? If I remove the geom_text , then the 'a' letter will not show in the legend. I want to keep geom_text , though. ...