Winu

1. New Termial Window

     : ctrl + alt + t

2. Screan Shot or Record

     : ctrl + shift + alt + r 

           or 

       "print screen" button

3. copy 

     : ctrl + shift + c  (on shell. if you want copy browser text, just press "ctrl + c")

4. paste

     : ctrl + shift + v  (on shell. if you want paste text on browser, just press "ctrl + v") 

Install Ubuntu

USB Setting : https://ubuntu-mate.org/faq/usb-image/

Download Ubuntu Image : https://ubuntu.com/download/desktop

Install Step

1. Go Bios Setting. (Method : restart & press F2 or F12)

2. Set "USB Booting" First

3. Reboot & Start Ubunti Install (Language : English)

Setting Ubuntu

1. Korean Setting : https://xangmin.tistory.com/16

2. Screen Blank

- Settings -> Power

- Screen Blank -> Select "Never"

Use App Setting

- VSCode : Install App Center

I occured "Troubleshootin keychain issues" error.  so record solve method.

source : https://code.visualstudio.com/docs/editor/settings-sync#_troubleshooting-keychain-issues

- just insert this command on the terminal

code --verbose --vmodule="*/components/os_crypt/*=1"

- Docker : https://docs.docker.com/engine/install/ubuntu/

My Choice = Install using the apt repository

# Set up Docker's "apt" repository.
## Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

## Add the repository to Apt sources:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update


# Install the Docker packages.
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin


# Verify that the Docker Engine installation is successful by running the "hello-world" image.
sudo docker run hello-world

Tips : If you use the "su -" command, you must set a sudo password & you can insert commands without using "sudo".

1. Set Sudo Password

     - sudo apt-get update

     - sudo passwd root

2. Use "su -" Command

- Permission Setting

# method 1 *(recommend)*
sudo chmod 666 /var/run/docker.sock

# method 2
sudo usermod -aG docker $USER
newgrp docker