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How to pass the value of a variable to the stdin of a command?
... Let's see how you handle blah=-n, blah=-e... use printf instead. unix.stackexchange.com/questions/65803/…
– Camilo Martin
Jun 22 '14 at 4:33
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What is difference between monolithic and micro kernel?
...el can invoke functions directly. Examples of monolithic kernel based OSs: Unix, Linux.
In microkernels, the kernel is broken down into separate processes, known as servers. Some of the servers run in kernel space and some run in user-space. All servers are kept separate and run in different addres...
Is file append atomic in UNIX?
In general, what can we take for granted when we append to a file in UNIX from multiple processes? Is it possible to lose data (one process overwriting the other's changes)? Is it possible for data to get mangled? (For example, each process is appending one line per append to a log file, is it po...
Java current machine name and logged in user?
Is it possible to get the name of the currently logged in user (Windows/Unix) and the hostname of the machine?
4 Answers
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C++ wait for user input [duplicate]
...the comp.lang.c FAQ covers this in some depth, with solutions for Windows, Unix-like systems, and even MS-DOS and VMS.
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How to use git with gnome-keyring integration
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Update Q4 2016:
Unix, Mac (Git 2.11+)
git config --global credential.helper libsecret
(See "Error when using Git credential helper with gnome-keyring")
Windows:
git config --global credential.helper manager
(See "How to sign out in...
基于PECL OAuth打造微博应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...到Access Token和Access Token Secret。
以新浪微博为例，大致的代码如下：
<?php
session_start();
$request_token_url = 'http://api.t.sina.com.cn/oauth/request_token';
$authorize_url = 'http://api.t.sina.com.cn/oauth/authorize';
$access_token_url = 'http://api.t.sina.c...
C++ code file extension? .cc vs .cpp [closed]
... broken down by different environments (from the "C++ Primer Plus" book):
Unix uses: .C, .cc, .cxx, .c
GNU C++ uses: .C, .cc, .cxx, .cpp, .c++
Digital Mars uses: .cpp, .cxx
Borland C++ uses: .cpp
Watcom uses: .cpp
Microsoft Visual C++ uses: .cpp, .cxx, .cc
Metrowerks CodeWarrior uses: .c...
Please explain the exec() function and its family
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Simplistically, in UNIX, you have the concept of processes and programs. A process is an environment in which a program executes.
The simple idea behind the UNIX "execution model" is that there are two operations you can do.
The first is to for...
由12306.cn谈谈网站性能技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...这对数据一致性有大的风险。这需要根据不同的业务进行分析和处理。（注意：用关系型数据库很容易移植到NoSQL上，但是反过来从NoSQL到关系型就难了）
二、数据镜像
几乎所有主流的数据库都支持镜像，也就是replication。数...