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What does “opt” mean (as in the “opt” directory)? Is it an abbreviation? [closed]
...
Add-on software packages.
See http://www.pathname.com/fhs/2.2/fhs-3.12.html for details.
Also described at Wikipedia.
Its use dates back at least to the late 1980s, when it was a standard part of System V UNIX. These days, it's also seen in Linux, Sola...
How to search for “R” materials? [closed]
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http://rseek.org is a great search engine for R manuals, mailing lists, and various websites. It's a Google syndicated search app with specialized UI. I always use it.
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What's invokedynamic and how do I use it?
...or reflective method calls. It can have very interesting applications. see http://www.infoq.com/presentations/Statically-Dynamic-Typing-Neal-Gafter
Neal Gafter, who's responsible for C#'s dynamic type, just defected from SUN to MS. So it's not unreasonable to think that the same things had been dis...
数据结构、算法复杂度一览表 - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术
...w-Thy-Complexities常用算法、数据结构复杂度一览表。来源：http://bigocheatsheet.com/
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图G(V,E), V...
Removing “NUL” characters
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This might help, I used to fi my files like this:
http://security102.blogspot.ru/2010/04/findreplace-of-nul-objects-in-notepad.html
Basically you need to replace \x00 characters with regular expressions
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Where are the PostgreSQL logs on macOS?
...ding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
[...]
<key>StandardErrorPath</key>
<string>/usr/local/var/postgres/server.log</string>
</dict>
&...
an htop-like tool to display disk activity in linux [closed]
...them separately. If you're not careful you can misinterpret the data. See http://collectl.sourceforge.net/Process.html
Of course, it shows a lot more than just process stats because you'd want one tool to provide everything rather than a bunch of different one that displays everything in different...
Performance of static methods vs instance methods
...t, rather than instance methods, can reduce some of the costs discussed at http://joeduffyblog.com/2011/10/23/on-generics-and-some-of-the-associated-overheads/ in the case where that given static isn't called for a given type. As he puts it "As an aside, it turns out that extension methods are a gre...
How do you find the last day of the month? [duplicate]
...gant approach I found in a useful DateTime extension library on CodePlex:
http://datetimeextensions.codeplex.com/
Here's some sample code:
public static DateTime First(this DateTime current)
{
DateTime first = current.AddDays(1 - current.Day);
return first;
}
publ...
How to automatically generate getters and setters in Android Studio
...t multiple fields for which to generate getters/setters with one step.
See http://www.jetbrains.com/idea/webhelp/generating-getters-and-setters.html
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