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How to find Unused Amazon EC2 Security groups
...upId' --output text | tr '\t' '\n' | sort | uniq
Then put it together and compare the 2 lists and see what's not being used from the master list:
comm -23 <(aws ec2 describe-security-groups --query 'SecurityGroups[*].GroupId' --output text | tr '\t' '\n'| sort) <(aws ec2 describe-instances ...
How can I create a keystore?
...application.
For more information about Keytool, see the documentation at: http://docs.oracle.com/javase/6/docs/technotes/tools/windows/keytool.html
and for more information on signing Android apps go here: http://developer.android.com/tools/publishing/app-signing.html
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C# switch on type [duplicate]
...hing you should know about.
Here's another take on the matter using Linq: http://community.bartdesmet.net/blogs/bart/archive/2008/03/30/a-functional-c-type-switch.aspx
Otherwise something along these lines could help
// nasty..
switch(MyObj.GetType.ToString()){
case "Type1": etc
}
// clumsy.....
How to disable XDebug
I think that my server became slow since I installed XDebug.
So, in order to test my hypothesis I want to disable XDebug completely.
I've been searching for tutorials on how to do this but I can't find such information.
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Java Date vs Calendar
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Date is a simpler class and is mainly there for backward compatibility reasons. If you need to set particular dates or do date arithmetic, use a Calendar. Calendars also handle localization. The previous date manipulation functions of Date have since been deprecated.
Personally I ...
Your project contains error(s), please fix it before running it
I am developing a simple Android application. But when I run Eclipse, it shows the following error:
26 Answers
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Callback on CSS transition
... triggered as expected. A blog post about this problem is available here: http://www.cuppadev.co.uk/the-trouble-with-css-transitions/ <-- 500 Internal Server Error
With this in mind, I tend to use this event in a chunk of code that looks a bit like this:
var transitionEndEventName = "XXX"; //f...
How to swap the buffers in 2 windows emacs
I am using emacs I find that sometimes I have 2 files separated into 2 windows.
8 Answers
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How to state in requirements.txt a direct github source
I've installed a library using the command
7 Answers
7
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Can I create links with 'target=“_blank”' in Markdown?
... you want to get that detailed, you'll just have to use HTML.
<a href="http://example.com/" target="_blank">Hello, world!</a>
Most Markdown engines I've seen allow plain old HTML, just for situations like this where a generic text markup system just won't cut it. (The StackOverflow en...