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How to run only one task in ansible playbook?
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You should use tags: as documented in http://docs.ansible.com/playbooks_tags.html
If you have a large playbook it may become useful to be able to run a specific part of the configuration without running the whole playbook.
Both plays and tasks support a “ta...
Storing custom objects in an NSMutableArray in NSUserDefaults
...airly easy to pick up and use. I have an episode in one of my screencasts (http://pragprog.com/screencasts/v-bdiphone) about a simple wrapper that I wrote (you can get the code without buying the SC).
It's much cleaner to store app data in app space.
All that said if it still makes sense to put t...
Why is there no GIL in the Java Virtual Machine? Why does Python need one so bad?
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There is a comment down below in this blog post http://www.grouplens.org/node/244 that hints at the reason why it was so easy dispense with a GIL for IronPython or Jython, it is that CPython uses reference counting whereas the other 2 VMs have garbage collectors.
The exac...
What is object slicing?
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Third match in google for "C++ slicing" gives me this Wikipedia article http://en.wikipedia.org/wiki/Object_slicing and this (heated, but the first few posts define the problem) : http://bytes.com/forum/thread163565.html
So it's when you assign an object of a subclass to the super class. The sup...
Is it possible to override the configuration of a plugin already defined for a profile in a parent P
...gt;
</plugin>
For more information on overriding plugins, see: http://maven.apache.org/pom.html
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“PKIX path building failed” and “unable to find valid certification path to requested target”
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Go to URL in your browser:
firefox - click on HTTPS certificate chain (the lock icon right next to URL address). Click "more info" > "security" > "show certificate" > "details" > "export..". Pickup the name and choose file type example.cer
chrome - click on s...
Is explicitly closing files important?
...bug you can't find the bug easily. you can also read more in my blog entry http://magnificentzps.blogspot.in/2014/04/importance-of-closing-file-descriptor.html
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Difference between “module.exports” and “exports” in the CommonJs Module System
On this page ( http://docs.nodejitsu.com/articles/getting-started/what-is-require ), it states that "If you want to set the exports object to a function or a new object, you have to use the module.exports object."
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How to bring back “Browser mode” in IE11?
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Easiest way, especially if in MSDN,,wasted hours of my time, stupid MS
http://support.microsoft.com/kb/2900662/en-us?sd=rss
Open the Developer Tools pane. To do this, press F12.
Open the Emulation screen. To do this, press Ctrl+8.
On the Document mode list under Mode, click 9.
On the User agen...
What is the difference between == and equals() in Java?
...ls(...)" (method in the java.lang.Object class) through these links:
==: http://docs.oracle.com/javase/tutorial/java/nutsandbolts/op2.html
.equals(...): http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html#equals(java.lang.Object)
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