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What command means “do nothing” in a conditional in Bash?
Sometimes when making conditionals, I need the code to do nothing, e.g., here, I want Bash to do nothing when $a is greater than "10", print "1" if $a is less than "5", otherwise, print "2":
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libevent对比libev的基准测试 - C/C++ - 清泛网 - 专注C/C++及内核技术
...次发布）是一个高性能事件循环，支持简单的 API、两 Google翻译自：http://libev.schmorp.de/bench.html
本文档简要描述了针对 libevent 和 libev 运行 libevent 基准程序的结果。
Libevent 概述
Libevent（于 2000-11-14 首次发布）是一个高性能事...
How to use sed to replace only the first occurrence in a file?
I would like to update a large number of C++ source files with an extra include directive before any existing #includes. For this sort of task, I normally use a small bash script with sed to re-write the file.
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What is the difference between HAVING and WHERE in SQL?
What is the difference between HAVING and WHERE in an SQL SELECT statement?
20 Answers
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Ruby, remove last N characters from a string?
What is the preferred way of removing the last n characters from a string?
13 Answers
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How to find the foreach index?
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foreach($array as $key=>$value) {
// do stuff
}
$key is the index of each $array element
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How to check which version of v8 is installed with my NodeJS?
How is V8 installed along with NodeJs? What version is my current V8 engine?
12 Answers
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Insert Data Into Temp Table with Query
I have an existing query that outputs current data, and I would like to insert it into a Temp table, but am having some issues doing so. Would anybody have some insight on how to do this?
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SELECT * FROM X WHERE id IN (…) with Dapper ORM
What is the best way to write a query with IN clause using Dapper ORM when the list of values for the IN clause is coming from business logic? For example let's say I have a query:
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Suppressing “warning CS4014: Because this call is not awaited, execution of the current method conti
This is not a duplicate of "How to safely call an async method in C# without await" .
8 Answers
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