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通过 ulimit 改善系统性能 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...这些问题时，经常使用的一种简单手段。ulimit 是一种 linux 系统的内键功能，它具有一套参数集，用于为由它生成的 shell 进程及其子进程的资源使用设置限制。本文将在后面的章节中详细说明 ulimit 的功能，使用以及它的影响，...
How to check if a value exists in an array in Ruby
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Alternate syntax: %w(Cat Dog Bird).include? 'Dog'
– scarver2
Dec 18 '12 at 22:04
190
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How do you get centered content using Twitter Bootstrap?
I'm trying to follow a very basic example. Using the starter page and the grid system , I was hoping the following:
23 An...
How to send only one UDP packet with netcat?
...and incompatibilities of netcat.
This also works sending to other hosts, ex:
echo -n "hello" >/dev/udp/remotehost/8000
These are not "real" devices on the file system, but bash "special" aliases. There is additional information in the Bash Manual.
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Android.app Fragments vs. android.support.v4.app using ViewPager?
...ion regarding the Android Support Libraries, Fragments, and as a specific example, the ViewPager class. My intention is to create an app with similar functionality to the sample provided on the Android Developer website ( http://developer.android.com/training/animation/screen-slide.html or http...
Split string with delimiters in C
...quired elsewhere make a copy of it and pass the copy to strtok().
EDIT:
Example (note it does not handle consecutive delimiters, "JAN,,,FEB,MAR" for example):
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
char** str_split(char* a_str, cons...
Linq select objects in list where exists IN (A,B,C)
...er.Where(o => allowedStatus.Contains(o.StatusCode));
or in query syntax:
var filteredOrders = from order in orders.Order
where allowedStatus.Contains(order.StatusCode)
select order;
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How do you attach a new pull request to an existing issue on github?
...the GitHub API, and attaches a pull request for the current branch to the existing issue number 4.
EDIT: Comment by @atomicules: To expand on the answer by @MichaelMior a full example is:
$ hub pull-request -i 4 -b USERNAME_OF_UPSTREAM_OWNER:UPSTREAM_BRANCH -h YOUR_USERNAME:YOUR_BRANCH URL_TO_IS...
z-index not working with position absolute
I opened the console (chrome\firefox) and ran the following lines:
5 Answers
5
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When someone writes a new programming language, what do they write it IN?
Please excuse my ignorance. I'm dabbling in PHP and getting my feet wet browsing SO, and feel compelled to ask a question that I've been wondering about for years:
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