Trying to figure out what daemon is,
so I found The Linux Programming Interface and took notes related to it.

Basic Concept

Docker can be seen as a simplified VM.
Since it will not install the whole operating system,
it comes with a smaller size and faster speed.

Image

Image contains a lightweight runtime environment,
including some libraries and executables within it.

Update

I’ve moved from Jekyll to Hugo.
This method only fits Jekyll.

Sitemap

A sitemap is a .xml file that contains the links to all the pages inside a website.
With a sitemap,
a search engine knows the pages and can therefore create indexes for them.
Then, people surfing the internet can find those pages with keywords after that.

Jekyll-sitemap

There is a plugin called jekyll-stiemap for Jekyll,
which generates a sitemap automatically whenever the website is re-building.

const with Normal Variables

Two ways to add const for normal variables:

const TYPE NAME = VALUE; // more common
TYPE const NAME = VAULE;

Both means this variable cannot be assigned to another value.

For example,

Update

I’ve moved my blog from Jekyll to Hugo.
The way to add like button stays the same,
but the code and where to place the code have to change.

LikeCoin

I came across LikeCoin and it piqued my interest.
LikeCoin is a cryptocurrency,
which is invented to encourage content creators.

The content creator can embed a Like Button within the content/web page,
so anyone with a like account who appreciates the content can click the button,
and the content creator will receive the corresponding LikeCoin.

The amount of LikeCoin the content creator will receive depends on the account type of the likers.
The LikeCoin Foundation will pay in proportion for the free account likers,
and payment accounts will pay in proportion for how many likes they click at the month.
The detail can be found at LikeCoin’s Medium.

Every time we create a new folder and add some files in MacOS,
it generates a .DS_Store file in that folder,
which causes lots of .DS_Store files spreading all over the places in MacOS,
and it is pretty annoying to add **/.DS_Store into every .gitignore file every time we create a new Git repository,
so I find a way to prevent the .DS_Store file from being tracked in every Git repository.

The git config command

The git config command can be used to set a variety of settings for git.
The most famous ones are git config --global user.name and git config --global user.email,
which sets user.name and user.email globally,
so every git repositories can use these settings.