裸设备是什么?20例Oracle学习的问答
裸设备，也叫裸分区（原始分区），是一种没有经过格式化，不被Unix通过文件系统来读取的特殊字符设备。裸设备可以绑定一个分区，也可以绑定一个磁盘。本文收集裸设备和Oracle问答20例。1.什么叫做裸设备？裸设备，也叫裸分区（原始分区），是一种没有经过格式化，不被Unix通过文件系统来读取的特殊字符设备。它由应用程序负责对它进行读写操作。不经过文件系统的缓冲。2.如何辨别裸设备？在Unix的/dev...
View ArticleUbuntu still isn't free software
Mark Shuttleworth just blogged about their stance against unofficial Ubuntu images . The assertion is that a cloud hoster is providing unofficial and modified Ubuntu images, and that these images are...
View ArticleFriday Reading 2016-12-02
Another week almost over so here’s a random selection of articles that I’ve been reading… Changing the SQL Server port on linux Denis Gobo goes through the process of changing the port that an instance...
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sed大法好
sed sed概念 （1）基本概念：sed是流编辑器（stream editor），A stream editor is used to perform basic text transformations on an input stream (a file or input from a pipeline).作用就是对输入的流（文件或者从一个管道输入的流）的最基本的文本处理。...
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My Free Software Activities in November 2016
My monthly report covers a large part of what I have been doing in the free software world. I write it formy donors (thanks to them!) but also for the wider Debian community because it can give ideas...
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Cloud Chatter: November 2016
Welcome to our November edition. We begin with details on our latest partnership with Docker. Next up, we bring you a co-hosted webinar with PLUMgrid exploring how enterprises can build and manage...
View ArticleLinux 常用简单命令
安装VMware时切记保持更新，重新安装VMware tools，根据虚拟机下方的提示完成。在Ubantu系统中额外安装软件，软件格式是.deb，以sublime-text-3为例，直接从windows中复制粘贴到/opt中，在终端中输入sudo dpkg -i /opt/sublime-text-3.deb，即可。（终端在应用市场中找，当sublime安装成功后，在终端输入subl打开）...
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重整Linux一次就够了
前言： 因为之前学校有学过linux:joy:，而且这几年一直使用的Mac做开发，所以对Linux及相关命令还是有些接触的，只是没有机会，也没有刻意去专门研究或者整理，最近因为学习与工作的而需要开始了一次Linux之路，所以学习的过程中寻找资料并且整理了一下。 目前几乎大部分的互联网公司公司都是使用Linux...
View ArticleHow To Find Largest And Smallest Directories And Files In Linux
As you a System administrator, you must know which directories and files are eating up more space and which are the smallest. This will give you an idea to get rid of unnecessary directories and files...
View ArticleThings to learn about Linux
Julia Evans has this amazing list of things to learn about linux . I think, it doesn’t matter how new or experienced you are with the operating system, you’ll find a few points in this list that you...
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Highlights of YaST development sprint 28
November is over, Santa Claus elves start to stress and the YaST team brings you one of the last reports of 2016. Let’s see what’s new in YaSTland. Harder to ignore installation warning The...
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从Finder迁往ranger
Mac下有许多好用的生产力工具，从iTerm到Moom,细节打磨的很细腻，常有令人意外的惊喜。而另一些工具让人用着仿佛置身于远古时代，Finder是其一 对Finder积怨已久。我在mac每做10件蠢事，大约有8件发生在Finder里 与Finder结怨 复制文件...
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7 Things Web Developers Need to Know About Linux Administration
Web programming is not just about how you can develop applications but also about how these applications can be deployed on a website. There are a number of control panels which have been provided by...
View ArticleSnapping KDE Applications
This is largely based on a presentation I gave a couple of weeks ago. If you are too lazy to read, go watch it instead:wink: For 20 years KDE has been building free software for the world. As part of...
View ArticleWhat does configure actually run
One of the claimed advantages of Autotools is that it depends (paraphrasing here) "only on make + sh". Some people add sed to the list as well. This is a nice talking point, but it is actually true?...
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How to Install and Use Ruby on Rails with PostgreSQL on CentOS 7
Ruby on Rails (RoR), or short "rails", is a server-side web application framework written in ruby that follows MVC (Model-View-Controller) concept. RoR is released under the OpenSource MIT License....
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This Week in Open Source News: Challenging the Microsoft Challengers, Fedora...
This week in open source and linux news, Steven J. Vaughan-NIchols challenges the critics of the new Linux Foundation-Microsoft membership news, Fedora 25 is easy for newbies to use, and more. Keep...
View ArticleLinux Kernel 4.4.36 LTS Introduces Minor PA-RISC Changes, Wireless Improvements
After announcing the release of linux kernel 4.8.12 , renowned kernel maintainer Greg Kroah-Hartman informed us about the availability of the thirty-sixth maintenance update to the long-term supported...
View ArticleOpenWrt上用C来写一个Helloworld
陆续用OpenWrt已经有5年多了, 一直以来都没有勇气用OpenWrt写原生的C程序. OpenWrt本身是维护了一些菜谱(recipe), 表现形式是Makefile. 它里面定义了包名/描述/类别/上游等等信息. make menuconfig 的时候, 会先把 package/ 目录里的所有包都扫描一遍, 生成总体的Makefile. 想单独编译这个包, make...
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Manage UPS Using Power Management on Ubuntu 16.04
UPS means Uninterruptible Power Supply. The UPS is a device which has a rechargeable battery provides electrical power for a few minutes after the outage, depending on its specifications. However, UPS...
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