[系统运维]Linux command learning

WSL2 Ubuntu

Windows Subsystem for Linux（简称WSL）是一个在Windows 10上能够运行原生Linux二进制可执行文件（ELF格式）的兼容层。

Keyboard Shotcut

windows terminal
wake-up window:Win + `
切换命令面板:Shift + Ctrl+t
切换全屏：f11
下一个选项卡： Ctrl + Tab
逆时针拆分窗口:Shift + Alt + D
垂直拆分窗口：Shift + Alt + +
水平拆分窗口：Shift + Alt + -
关闭窗口：Shift + Ctrl + w
光标切换不同窗口：Alt + 方向键

Ubuntu Terminal

1. Network settings ：

//turn on
export http_proxy=http://XXX.XXX.XXX.XXX:port
or 
export https_proxy=https://XXX.XXX.XXX.XXX:port
or 
export ALL_PROXY=socks5://XXX.XXX.XXX.XXX:port
//turn off
unset http_proxy
or 
unset https_proxy
or
unset ALL_PROXY

a. write shell script
build a file called " teminal_proxy.sh"，including two functions.

# on
function proxy_on(){
    export ALL_PROXY=socks5://XXX.XXX.XXX.XXX:port
    export http_proxy=http://XXX.XXX.XXX.XXX:port
    export https_proxy=https://XXX.XXX.XXX.XXX:port
    echo -e "on"
}

# off
function proxy_off(){
    unset ALL_PROXY
    unset http_proxy
    unset https_proxy
    echo -e "off"
}

b. recite inital config file

vim ~/.zshrc
or 
vim ~/.bashrc

the ending of file add one sentence of command：

source /path1/path2/terminal_proxy.sh

**c.test **

proxy_on
curl github.com
proxy_off

2. install software

a.install command

sudo apt golang-go 

b.unload command

sudo apt purge golang-go  //删除软件不彻底。
or
sudo apt-get remove golang-go
sudo apt-get remove --auto-remove golang-go
rm -rvf /usr/local/go/

3. 在终端中显示Linux系统信息

neofetch