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What is the difference between Linux and Unix?

Brief History

• Unix is invented by Ken Thompson (UTF-8, Go) and Denis Ritchie (C)
• Initially worked with MULTICS (run multiple programs, but is frustrated due to direction and scope of project
• Ken and Denis worked in UNICS (one program at a time) as an alternative (over time, gets called Unix)
• C become mature, they rewrite the Unix using C
• AT&T is forbidden to enter the market, licensed the source code
• various universities uses it, one of them is Berkeley

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# extensions
sudo apt-get install \
    libxml2-dev \
    libcurl4-openssl-dev \
    libjpeg-dev \
    libpng-dev \
    libxpm-dev \
    libmysqlclient-dev \
    libpq-dev \
    libicu-dev \

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# signing tags and commits - https://git-scm.com/book/en/v2/Git-Tools-Signing-Your-Work
# verify if you have gpg keys
gpg --list-keys

# generate one 
gpg --gen-key

# short last commit sha
git rev-parse --short HEAD

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ALTER USER 'user'@'%' IDENTIFIED WITH mysql_native_password BY 'pass;
-- or
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';

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# login to your account
npm adduser

# publish a package: updated first the version in package.json
npm publish .

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## Docker-compose configurations

WORKSPACE_TIMEZONE=UTC

# Point to the path of your applications code on your host
APP_CODE_PATH_HOST=./

# Point to where the `APP_CODE_PATH_HOST` should be in the container. You may add flags to the path `:cached`, `:delegated`. When using Docker Sync add `:nocopy`
APP_CODE_PATH_CONTAINER=/var/www:cached

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version: '3'

networks:
  frontend:
    driver: ${NETWORKS_DRIVER}
  backend:
    driver: ${NETWORKS_DRIVER}

volumes:
  mysql:

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// Download the keypair file 
// Set the permission to 400

// Connect to the box - 
ssh -i keypair_file.pem ec2-user@yourinstance.compute-1.amazonaws.com

// update packages
sudo yum update -y

// install docker

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// register a function taht will register the menus
add_action( 'admin_menu', 'the_function_that_will_add_menu' );

// the function that will add menu
function the_function_that_will_add_menu() {
	add_options_page( 'My Plugin Options', 'My Plugin', 'manage_options', 'my-unique-identifier', 'my_plugin_options' );
}

// function to add top level menu
add_menu_page

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# System Architecture  (14%)
dmesg
udev
dbus
lsusb
lspci
sysfs
/sys
/proc
/dev