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Sorting data based on second column of a file

... "wrong" ordering. Pay attention to man "*** WARNING *** The locale specified by the environment affects sort order. Set LC_ALL=C to get the traditional sort order that uses native byte values." (for string match case without -n) – x'ES Sep 29 '18 at 0:28 ...
https://www.tsingfun.com/it/bigdata_ai/1071.html 

Redis消息通知系统的实现 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...使用LIST来实现,但LIST只能按照插入的先后顺序实现类似FIFO或LIFO形式的队列,然而消息实际上是有优先级的:比如说个人消息优先级高,全局消息优先级低。此时可以使用ZSET来实现,它里面分数的概念很自然的实现了优先级。 ...
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Get all inherited classes of an abstract class [duplicate]

...use Assembly.GetAssembly(typeof(T)) because your base class might be in a different assembly. You need to use the criteria type.IsClass and !type.IsAbstract because it'll throw an exception if you try to instantiate an interface or abstract class. I like forcing the enumerated classes to implement ...
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git - Find commit where file was added

...e's simpler, "pure Git" way to do it, with no pipeline needed: git log --diff-filter=A -- foo.js Check the documentation. You can do the same thing for Deleted, Modified, etc. https://git-scm.com/docs/git-log#Documentation/git-log.txt---diff-filterACDMRTUXB82308203 I have a handy alias for this...
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C# how to create a Guid value?

... If you, like me, make the mistake of doing (new Guid().toString()) you will get 0000-00000-00000-00000. You need to do Guid.NewGuid().toString() – Joao Carlos Jan 3 '15 at 15:10 ...
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Plot yerr/xerr as shaded region rather than error bars

... @BenjaminBannier I'm not fully sure what you mean. It sounds as if you'd like a box drawn at each point, its height the same as that of the error bar, while the width should be such that they connect (touch) the neighbouring boxes. Is that correct? – user707650 ...
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jQuery Scroll To bottom of the page

... This is not perfect, as in some cases, even if rare, there might be pages longer than that, specially pages that load unlimited content dynamically. This will stop the scroll mid way. – Akhil Gupta Mar 18 '19 at 15:24 ...
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App Inventor 2 计时器(Clock)详细用法示例 · App Inventor 2 中文网

...鼠标移动时拖动元素 document.onmousemove = function(e) { if (!isDragging) return; element.style.left = (e.clientX - offsetX) + 'px'; element.style.top = (e.clientY - offsetY) + 'px'; }; // 鼠标释放时停止拖动 document.onmouseup = function(...
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How to display hidden characters by default (ZERO WIDTH SPACE ie. &#8203)

... StackExchange.ifUsing("editor", function () { StackExchange.using("externalEditor", function () { StackExchange.using("snippets", function () { StackExchange.snippets.init(); ...
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DESTDIR and PREFIX of make

I am trying to make software install to a specific directory. I found several ways, but not sure what are the differences between them. ...