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error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' — Miss
...east preferred):
Find the process id of mysql with either pgrep mysql or ps aux | grep mysql | grep -v grep
Assuming the process id is 4969 terminate with kill -9 4969
After you do this you might want to look for a pid file in /var/run/mysqld/ and delete it
Make sure the permissions on your s...
二维码的生成细节及原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...识
首先，我们先说一下二维码一共有40个尺寸。官方叫版本Version。Version 1是21 x 21的矩阵，Version 2是 25 x 25的矩阵，Version 3是29的尺寸，每增加一个version，就会增加4的尺寸，公式是：(V-1)*4 + 21（V是版本号） 最高Version 40，(40-1)*4+...
SSMS插件开发指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ject = (DTE2)ServiceCache.ExtensibilityModel;
注意：开发使用的VS版本不能高于SSMS的版本，否则会出现各种各样意想不到的问题。
SSMS2008一般采用VS2005或VS2008开发，SSMS2012采用VS2012开发。SSMS2008与SSMS2012一些获取对象等细节方面也有少量...
Timing a command's execution in PowerShell
...
Yup.
Measure-Command { .\do_something.ps1 }
Note that one minor downside of Measure-Command is that you see no stdout output.
[Update, thanks to @JasonMArcher] You can fix that by piping the command output to some commandlet that writes to the host, e.g. Out...
How to handle command-line arguments in PowerShell
...el. Normal PowerShell scripts have parameters starting with -, like script.ps1 -server http://devserver
Then you handle them in param section in the beginning of the file.
You can also assign default values to your params, read them from console if not available or stop script execution:
param (...
Error when testing on iOS simulator: Couldn't register with the bootstrap server
... I hate restarting :) Quitting the hung process worked for me: ps ax | grep Simulator will show your running apps, in my case it was MyApp.app that was hung.
– BadPirate
Jan 28 '11 at 0:08
...
Android emulator-5554 offline
I'm having a problem with emulator-5554, it keeps telling me it is offline.
37 Answers
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莱昂氏unix源代码分析 PDF - 文档下载 - 清泛网 - 专注C/C++及内核技术
...码分析 PDF莱昂 源代码本书由上、下两篇组成。上篇为UNIX版本6的源代码，下篇是莱昂先生对UNIX操作系统版本6源代码的详细分析。本书语言简洁、透彻，曾作为未公开...本书由上、下两篇组成。上篇为UNIX版本6的源代码，下篇是...
Looping through a hash, or using an array in PowerShell
...ould be done in a script for readability and reusability:
Variable Setup
PS> $hash = @{
a = 1
b = 2
c = 3
}
PS> $hash
Name Value
---- -----
c 3
b 2
a ...
智能手机图形解锁有多少种可能 - 创意 - 清泛网 - 专注C/C++及内核技术
...。例如， 如果从左上角的点连接到右上角的点，中间的那个点会被自动地加进路径里。但麻烦就麻烦在，这个规则本身也有一个值得注意的地方：如果中间的点是之前已经用过的，那么这个点就可以被跳过去了。
列出所有的可...