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How to install a gem or update RubyGems if it fails with a permissions error
...ecause System installs/upgrades, and Disk Utility can automatically revert/repair the ownership and permissions of the directory. That will frustrate the user and can frustrate the OS and code that expects to have write permissions/ownership of those directories. Apple installs apps that use its Rub...
MongoDB副本集详解 优于以往的主从模式 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...为MongoDB使用内存映射文件,所以必须使用64位版本。官方下载地址如下：http: www mongodb org downloads实验环境使用的Mongodb版本为mon 因为MongoDB使用内存映射文件,所以必须使用64位版本。
官方下载地址如下：http://www.mongodb.org/downloads...
Maximum execution time in phpMyadmin
... follow
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edited Jun 16 '17 at 1:13
Simon East
42.7k1313 gold badges124124 silver badges116116 bronze badges
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What is the purpose of the -m switch?
...to the module referenced by the modulename itself.
The final major feature enhancement for -m came with PEP 366. With this upgrade -m gained the ability to support not only absolute imports but also explicit relative imports when executing modules. This was achieved by changing -m so that it set the...
Can I browse other people's (Apple) bug reports? [closed]
...nderstandable for the security aspect. Kind of sucks for non-security bugs/enhancements though.
– David
Sep 19 '12 at 1:37
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10 条真心有趣的 Linux 命令 - 创意 - 清泛网 - 专注C/C++及内核技术
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5.asciiquarium
这个命令会将你的终端变成一个海洋馆。
下载term animator：
# wget http://search.cpan.org/CPAN/authors/id/K/KB/KBAUCOM/Term-Animation-2.4.tar.gz
安装并且配置这个包：
# tar -zxvf Term-Animation-2.4.tar.gz
# cd Term-Animation-2.4/
# perl Makefile...
Eclipse XDebug配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...置http: xdebug org wizard php来输入拷贝的phpinfo信息来检测该下载哪个版本文件。zend_extension = php_xdebug-2 5 4-5 6-vc11-nts-x86_ http://xdebug.org/wizard.php
来输入拷贝的phpinfo信息来检测该下载哪个版本文件。
php.ini末尾添加如下配置：
zen...
App Inventor 2 离线版 - 免登录，离线用，一键启动，App开发so easy！
... 免费下载 软件大小：1.6 GB 配置要求：2核心CPU 8G内存 20G磁盘 及以上 ...
Get MIME type from filename extension
...ext/xml"},
{".wvx", "video/x-ms-wvx"},
{".x", "application/directx"},
{".xaf", "x-world/x-vrml"},
{".xaml", "application/xaml+xml"},
{".xap", "application/x-silverlight-app"},
{".xbap", "application/x-ms-xbap"},
{".xbm", "image/x-xbitmap"},
...
Reshaping data.frame from wide to long format
...ad by R as character-values (as a result of the , in the numbers). You can repair that with gsub and as.numeric:
long$value <- as.numeric(gsub(",", "", long$value))
Or directly with data.table or dplyr:
# data.table
long <- melt(setDT(wide),
id.vars = c("Code","Country"),
...