Linux(Ubuntu)

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mysql

sudo apt-get install mysql-server
sudo apt-get install mysql-client
sudo apt-get install libmysqlclient-dev

安装mysql的可视化界面（mysql workbench）

sudo apt-get install mysql-workbench
sudo service mysql start#start server

shell中可以连接mysql， workbench失败

# shell mysql
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'your password';
FLUSH PRIVILEGES;

Google chrome

https://www.google.cn/chrome/

wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb

Desktop icon

[Desktop Entry]
Type=Application
Name=Pycharm
Comment=Pycharm Integrated Development Environment
Icon=/home/arron/Softwares/pycharm-community-2018.3/bin/pycharm.png
Exec=/home/arron/Softwares/pycharm-community-2018.3/bin/pycharm.sh
Terminal=false
Categories=Development;IDE;Python

设置环境变量

vim ~/.bashrc

# 在.bashrc后加入你要设置环境变量
# set java
export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=$PATH:${JAVA_HOME}

source ~/.bashrc
# 立即生效

更换源

https://www.linuxidc.com/Linux/2017-11/148627.htm

JDK
https://www.linuxidc.com/Linux/2017-06/144732.htm

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Apache-Tomcat
只能在官网下载tar.gz文件
详见：https://blog.csdn.net/jenyzhang/article/details/70159769
注意事项：openJDK的安装目录：/usr/lib/jvm/java-8-openjdk-amd64
直接用网页打开localho:8080就行，好像直接ping是不通的。

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eclipse 安装

sudo apt-get install eclipse

启动失败

# log
!ENTRY org.eclipse.equinox.launcher 4 0 2018-05-28 17:52:18.099
!MESSAGE Exception launching the Eclipse Platform:
!STACK
java.lang.ClassNotFoundException: org.eclipse.core.runtime.adaptor.EclipseStarter
   at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:471)
   at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:566)
   at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
   at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:626)
   at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
   at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
   at org.eclipse.equinox.launcher.Main.main(Main.java:1414)

如果出现上面的问题的话：

sudo apt-get remove --purge eclipse #如果已经安装了的话
sudo snap install eclipse --classic #重新安装

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Eclipse 配置Tomcat
首先help->install new software
搜索 Web 选择 Eclipse Java Web Developer Tools & Eclipse Web Developer Tools.
搜索 adapter 选择 JST Server Adapters & Extensions.

Gnome美化过程

https://blog.csdn.net/ice__snow/article/details/80152068

一些常用的IDE

sudo apt-get install mysql-workbench;#mysql
sudo apt-get install eclipse;#java
sudo apt-get install codeblocks;#c++

中文添加

https://blog.csdn.net/weixin_39792252/article/details/80415550

中文输入法添加

sudo apt install fcitx
# 配置fcitx
# im-config -> Input Method Configuration
im-config
sudo apt install fcitx-googlepinyin
fcitx-config-gtk3

具体操作：
https://www.jianshu.com/p/180cd9634b4a

字体添加

https://www.cnblogs.com/kaishirenshi/p/8287014.html
google sans font
https://dnd.com.pk/download-google-sans-font-for-free/154593

waiting for headers

rm /var/lib/apt/lists/* 
rm /var/lib/apt/lists/partial/* 
apt-get update

查询Ubuntu位数

https://blog.csdn.net/kunkliu/article/details/79813967

crouton 代理问题

• env:

unset http_proxy
unset https_proxy
#......

• /etc/environment

sudo vi /etc/environment

• apt.conf.d

cd /etc/apt/apt.conf.d
ls
sudo vi 80croutonproxy

pixelbook 2015 samus linux 配置

https://github.com/raphael/linux-samus