Ubuntu | 易学教程

关于SMR，IMR的调研

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这段时间在关注新型存储设备——SMR，IMR，大致浏览了一下相关论文（10篇左右，未细读），总结了一下我对这两者的认知，算是一个调研，看看IMR领域的前景以及研究的可行性。直接放个思维导图吧，东西太杂了，自己的理解也不是很细致。主要可以参考一下近5年这个领域上研究方向的概览。 References都放在了这里： https://paste.ubuntu.com/p/W9kxrmjdRt/ 来源： oschina 链接： https://my.oschina.net/u/4310326/blog/4740472

How to fix Nokogiri on Ubuntu?

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问题 I run Ubuntu 13.04 on my workstation with ruby 2.0.0, which was installed via RVM. $ aptitude show libxml2 Package: libxml2 State: installed Automatically instlled: no Multi-Arch: same Version: 2.9.0+dfsg1-4ubuntu4.1 $ aptitude show libxml2-dev Package: libxml2-dev State: installed Automatically installed: no Multi-Arch: same Version: 2.9.0+dfsg1-4ubuntu4.1 $ aptitude show libxslt-dev Package: libxslt1-dev State: installed Automatically installed: no Version: 1.1.27-1ubuntu2 Priority:

octave 3.8.1 can't stop execution in gui command window

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问题 I'm running octave 3.8 with the gui in Ubuntu 14.04. I have an infinite loop somewhere in my program and it seems like the terminal doesn't respond to the typical keypresses to stop execution. (eg. Ctrl+C, Ctrl+Z) When I run programs in the terminal, I can just press Ctrl+C, but that doesn't seem to work here. What can I do to halt execution? 回答1: To stop a running command or script in octave GUI or prompt: Ctrl + C you will see: less -- (f)orward, (b)ack, (q)uit To abort (and close the GUI

入门学习SLAM（Windows &Ubuntu 16.04 双系统安装图片教程）

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入门学习SLAM 入门学习SLAM计划是一个系列，从开始记录大家的学习过程，每一步我们都是有规划的。前一段时间发现了一篇安装Windows + Ubuntu 16.04 双系统安装详细教程，然后放在公众号上供大家参考，也是学习SLAM的第一步了。一、准备：（一）、准备工具：　　➢U盘一个（请提前备份U盘里面的资料，因为后面操作要格式化U盘）　　➢Ubuntu16.04LTS（长期支持版）镜像：　　　　下载地址：http://www.ubuntu.com/download/desktop 　　➢启动U盘制作软件：（Ubuntu官网提供的页面：http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-windows）（二）、分区---分出来一个磁盘，用于安装Ubuntu （由于我的电脑早就分好了，所以我就没有分区步骤的截图，win8/win10请参照：https://jingyan.baidu.com/article/ca2d939d0f28d1eb6d31ce53.html 我在下面已经把链接内容搬了过来，只是写了我们用得着的部分，还有一点请注意：这个“百度经验”中分的是“C盘”，你在分区时请根据你的磁盘大小进行分区，而且不建议分“C盘”，建议分非系统盘，如果你不知道该分多大的空间，请先看一下后面

Open a path with Desktop.open() from java on ubuntu (linux)

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问题 From my application written in java I want to open a folder, using the operating system file explorer. I use Desktop.open(new File(path)) This works fine on windows, but on ubuntu 11.10 (linux) it doesn't work. Using the Desktop.open to open a file does work, both on ubuntu and windows. Using a step in between: File fPath=new File(fPath) and testing it with fPath.exists() and fPath.isDirectory() both gives true. using the Desktop.open(new File(path)) gives me this exception: java.io

How can I use xdotool from within a python module/script?

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问题 For example, if i wanted to use something like: xdotool mousemove 945 132 xdotool click 1 In order to move the mouse to a certain location and click. In ubuntu I can just type these commands straight into the terminal to get the desired effect but I would like to put them inside of a Python script. Thanks in advance! 回答1: import subprocess subprocess.call(["xdotool", "mousemove", "945", "132"]) etc. See the subprocess docs. 回答2: As of 2015 you can also use this python package: https://github

ubuntu 16.04.1 LTS crashes when starting android emulator

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问题 I have tried both the AVD on Android studio and Genymotion emulator. My ubuntu 16.04.1 crashes (freezes) when starting the android emulator. My computer has 16G memory. This happens after I installed the latest updates for my ubuntu in 19 Sept 2016. 回答1: I had same problem. Select in menu "Emulated performance" the "software", no automatical or hardvare 回答2: I had the same problem. You are probably using nouveau display driver instead of NVIDIA driver. You can check your driver with: lshw -c

kdevtmpfsi - how to find and delete that miner [closed]

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问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 1 year ago . Improve this question I saw in my Linux (Ubuntu) server processes, called: kdevtmpfsi . It utilized 100% of all CPUs and RAM... 1) Tried to find a word in linux files: find / -type f -exec grep -l "kdevtmpfsi" {} + 2) And found a file in the docker _data folder: /var/lib/docker/volumes

kdevtmpfsi - how to find and delete that miner [closed]

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树莓派4b + Ubuntu20.10 Server 安装Java8 64

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安装环境：树莓派4b +Ubuntu 20.10 (GNU/Linux 5.8.0-1015-raspi aarch64) 首先查看一下自己系统的版本 uname -m 1. 下载jdk https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html 2. 解压 tar -zxvf jdk-8u281-linux-aarch64.tar.gz 3. 将解压后的文件夹剪切到usr/local/jdk1.8 目录下创建目录 cd /usr/local sudo mkdir jdk1.8 剪切至所创建的 /usr/local/jdk1.8/ 目录下 sudo mv jdk1.8.0_281 /usr/local/jdk1.8/ 4. 配置环境变量 sudo vim /etc/profile 在最后面追加 #jdk export JAVA_HOME=/usr/local/jdk1.8/jdk1.8.0_281 export PATH=$JAVA_HOME/bin:$PATH export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar 5. 重载环境变量 source /etc/profile 6. 检查 java -version