问题1 ubuntu 14.04 --系统的网络服务与此版本的网络管理器不兼容问题

1、sudo -s 2、cd /etc/NetworkManager/3、ls -la4、mv system-connections /home/
    
     /   #移动目录到自己的用户目录下5、mkdir /system-connections         6、reboot

当然，也可能是！32位的老机器，下载了64位的系统~~

问题2. 锐捷上网问题

校园网下载客户端后，

cd rjsupplicantsudo ./rjsupplicant.sh -d 0 -u username -p password

此时如果网卡消失了

cd /etc/init.d/sudo start network-manager

问题3. 搭建ssh服务器

sudo apt-get updatesudo apt-get install openssh-server

问题4. vim tab设置为四个空格

vim ~/.vimrc

添加以下内容

set ts=4set expandtab

问题5. 安装java

以安装 jdk-8u72-linux-x64.tar.gz 为例#解压安装包：sudo tar -zxvf jdk-8u72-linux-x64.tar.gzmv jdk1.8.0_72/ /opt/#配置环境变量：#编辑配置文件：sudo vim /etc/profile#在该文件的最尾巴，添加下面内容：  JAVA_HOME=/opt/jdk1.8.0_72  JRE_HOME=$JAVA_HOME/jre  PATH=$PATH:$JAVA_HOME/bin  CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar  export JAVA_HOME  export JRE_HOME  export PATH  export CLASSPATH#执行命令，刷新该配置（必备操作）：. /etc/profile#检查是否使用了最新的 JDK：java -version

安装maven

下载解压完后，vi ~/.zshrc

export M2_HOME=/opt/software/apache-maven-3.5.0export M2=$M2_HOME/binexport PATH=$M2:$PATH

sublime中文输入问题

解决方法：#1. 进入sublime text3 插件管理文件夹cd ~/.config/sublime-text-3/Packages#2. 获取InputHelper插件git clone https://github.com/xgenvn/InputHelper.git#如果发现在sublime text3 中无法使用ctrl+shift+z调出输入框，请检查是否安装pygtksudo apt-get install python-gtk2-dev

grub>

想给实验室的这台小电脑挖坑，就保持

linux (hd0,1)/vmlinuz.efi root=/dev/sda3initrd (hd0,1)/initrd.lzboot

不然就试试

sudo update-grubsudo grub-install /dev/sda

好用软件系列

美观相关

安装Albert 和 Casio

sudo add-apt-repository ppa:nilarimogard/webupd8sudo apt-get updatesudo apt-get install albertsudo apt-get install cairo-dock

开发者相关

安装zeal

sudo apt-get install zeal

自己从废旧电脑里淘到一个i5-3代的cpu，从一堆2G的内存里淘到两个4G的，现在牛气哄哄地升级系统，之前真的是，一把心酸泪

升级17.04

配置apt源，校园网，用清华的吧

sudo vi /etc/apt/sources.list

# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse# 预发布软件源，不建议启用# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse

升级！

sudo do-release-upgrade -d

升级17.04后没有声音

NVidiaThe first step is to make sure that the GPU is not in use by a driver. As you're using the nvidia driver, you must also be using prime.Run prime-select query.If it outputs nvidia, you can disable the driver by running sudo prime-select intel and rebooting.If it outputs unknown then the previous step might also work, but will also break your bumblebee setup.As a sanity check, make sure that the GPU and its audio chip are powered:Login as root: sudo suRun lspci -H1 | grep 01:00. It should output two lines.If the first line ends with (rev ff), you need to power your GPU by running echo ON > /proc/acpi/bbswitch.If the second line is missing, that means that the GPU audio chip is no longer powered. You can try suspending your laptop; resume it again; and check again whether the GPU audio chip is powered (I hope that works for you, otherwise you're out of luck, like me).Run lsmod | grep nvidia again to make sure that the nvidia driver is still not in use.Now that the GPU is powered without a driver we're going to 'remove' it:Run echo 1 > /sys/bus/pci/devices/0000\:01\:00.0/remove (if the GPU still had a driver loaded/in use, this causes a kernel panic).Redetect the GPU and also its audio chip by running echo 1 > /sys/bus/pci/rescan.Run lspci | grep 01:00.1. If that outputs anything, congratulations! Your linux is now aware of your GPU audio chip.Get X running with the nvidia GPU.Run prime-select. If it outputs intel, run prime-select nvidia.Logout and back in again.If you run aplay -l now it should output the HDMI outputs (on my pc there are 4 outputs, and only 1 works).

安装系统监控indicator-sysmonitor

sudo add-apt-repository ppa:fossfreedom/indicator-sysmonitor  sudo apt-get update sudo apt-get install indicator-sysmonitor

最后在终端执行indicator-sysmonitor &即可

安装zsh

之前竟然没有放进来,装oh my zsh的前提是要装好了curl以及git

sudo apt-get install curlsudo apt-get install gitsudo apt-get install zshsh -c "$(curl -fsSL https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"