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Best way to simulate “group by” from bash?
... is the best (and simplest):
sort -n ip_addresses.txt | uniq -c
I found http://unix.derkeiler.com/Newsgroups/comp.unix.shell/2005-11/0118.html. But it's ugly as hell...
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How to start jenkins on different port rather than 8080 using command prompt in Windows?
...
Use the following command at command prompt:
java -jar jenkins.war --httpPort=9090
If you want to use https use the following command:
java -jar jenkins.war --httpsPort=9090
Details are here
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Determine if running on a rooted device
...standart processes.
There is a bug report for same issue on bugs.sun.com: http://bugs.sun.com/view_bug.do?bug_id=6474073 this explains if command is not found zombies are going to be created with exec() method. But I still don't understand why and how can they become standart processes and hold sig...
Setting CSS pseudo-class rules from JavaScript
... unique ID to allow it to be selected.
In theory the document you want is http://www.w3.org/TR/DOM-Level-2-Style/Overview.html which means you can (given a pre-existing embedded or linked stylesheet) using syntax like:
document.styleSheets[0].insertRule('#elid:hover { background-color: red; }', 0)...
Fastest way to serialize and deserialize .NET objects
...omprehansive comparison between diffreent formats made by me in this post-
https://maxondev.com/serialization-performance-comparison-c-net-formats-frameworks-xmldatacontractserializer-xmlserializer-binaryformatter-json-newtonsoft-servicestack-text/
Just one sample from the post-
...
How to check if a path is absolute path or relative path in cross platform way with Python?
...eUploader: {
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What is the default initialization of an array in Java?
...ince there was a heated discussion about array,
Quoting from the jls spec http://docs.oracle.com/javase/specs/jls/se7/html/jls-4.html#jls-4.12.5
"array component is initialized with a default value when it is created"
I think irrespective of whether array is local or instance or class variable it ...
How to get a microtime in Node.js?
...sers, time with microsecond precision is available as performance.now. See https://developer.mozilla.org/en-US/docs/Web/API/Performance/now for documentation.
I've made an implementation of this function for Node.js, based on process.hrtime, which is relatively difficult to use if your solely want ...
Multiple INSERT statements vs. single INSERT with multiple VALUES
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What is the shortest function for reading a cookie by name in JavaScript?
...) : '';
}
A performance comparison of various approaches is shown here:
http://jsperf.com/get-cookie-value-regex-vs-array-functions
Some notes on approach:
The regex approach is not only the fastest in most browsers, it yields the shortest function as well. Additionally it should be pointed out...