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How to install a specific version of a ruby gem?
...ed a later version of your gem, then you must uninstall the later version with e.g. gem uninstall fog. It will ask you which version to uninstall if you have more than one.
– Dizzley
Jan 26 '14 at 18:18
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Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
...cate.
These are common reasons that can cause that:
Trying to connect with the wrong key. Are you sure this instance is using this keypair?
Trying to connect with the wrong username. ubuntu is the username for the ubuntu based AWS distribution, but on some others it's ec2-user (or admin on some ...
What is the difference between Normalize.css and Reset CSS?
.... This may not be to everyone's taste. The best thing to do is experiment with both and see which gels with your preferences.
Normalize.css corrects some common bugs that are out of scope for reset.css. It has a wider scope than reset.css, and also provides bug fixes for common problems like: displa...
How to search by key=>value in a multidimensional array in PHP
... [name] => cat 1
)
)
If efficiency is important you could write it so all the recursive calls store their results in the same temporary $results array rather than merging arrays together, like so:
function search($array, $key, $value)
{
$results = array();
search_r($array, $k...
How to pass parameters to a partial view in ASP.NET MVC?
...follow
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edited Oct 29 '13 at 15:01
Michał Powaga
19.7k66 gold badges4444 silver badges6060 bronze badges
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What is “rvalue reference for *this”?
... statement". The type of *this never changes, see the bottom of this post. It's way easier to understand it with this wording though.
Next, the following code chooses the function to be called based on the ref-qualifier of the "implicit object parameter" of the function†:
// t.cpp
#include <ios...
Duplicate headers received from server
...
This ones a little old but was high in the google ranking so I thought I would throw in the answer I found from Chrome, pdf display, Duplicate headers received from the server
Basically my problem also was that the filename contained com...
Extracting substrings in Go
I'm trying to read an entire line from the console (including whitespace), then process it. Using bufio.ReadString, the newline character is read together with the input, so I came up with the following code to trim the newline character:
...
Print a string as hex bytes?
I have this string: Hello world !! and I want to print it using Python as 48:65:6c:6c:6f:20:77:6f:72:6c:64:20:21:21 .
13...
Mixins vs. Traits
What is the difference between Mixins and Traits?
2 Answers
2
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