web/_posts/2019-08-08-write-a-new-post.md

title	date	categories	tags
Writing a New Post	2019-08-08 14:10:00 +0800	Blogging Tutorial	writing

Naming and Path

Create a new file named with the format YYYY-MM-DD-title.md then put it into _post of the root directory.

Front Matter

Basically, you need to fill the Front Matter as below at the top of the post:

---
title: TITLE
date: YYYY-MM-DD HH:MM:SS +/-TTTT
categories: [TOP_CATEGORIE, SUB_CATEGORIE]
tags: [TAG]     # TAG names should always be lowercase
---

Note

: The posts' layout has been set to post by default, so there is no need to add the variable layout in Front Matter block.

• Timezone of date

  In order to accurately record the release date of a post, you should not only setup the timezone of _config.yml but also provide the the post's timezone in field date of its Front Matter block. Format: +/-TTTT, e.g. +0800.

• Categories and Tags

  The categories of each post is designed to contain up to two elements, and the number of elements in tags can be zero to infinity.

  The list of posts belonging to the same category/tag is recorded on a separate page. The number of such category/tag type pages is equal to the number of categories/tags for all posts, they must match perfectly.

  let's say there is a post with front matter:

categories: [Animal, Insect]
tags: bee

then we should have two *category* type pages placed in folder `categories` of root and one *tag* type page placed in folder `tags`  of root:

jekyll-theme-chirpy
├── categories
│   ├── animal.html
│   └── tutorial.html
└── tags
    └── bee.html

and the content of a *category* type page is

---
layout: category
title: CATEGORY_NAME        # e.g. Insect
category: CATEGORY_NAME     # e.g. Insect
---

the content of a *tag* type page is

---
layout: tag
title: TAG_NAME             # e.g. bee
tag: TAG_NAME               # e.g. bee
---

With the increasing number of posts, the number of categories and tags will increase several times!  If we still manually create these *category*/*tag* type files, it will obviously be a super time-consuming job, and it is very likely to miss some of them(i.e. when you click on the missing `category` or `tag` link from a post or somewhere, it will complain to you '404'). The good news is that we got a lovely script tool `_scripts/py/pages_generator.py` to finish the boring task. Basically we will use it via `tools/init.sh` instead of running it separately. Check out its use case [here]({{ "/posts/getting-started/#option-1-built-by-github-pages" | relative_url }}).

• Last modified date

  The last modified date of the posts is recorded as seo.date_modified, for example:

---
seo:
    date_modified: 2020-01-04 17:05:41 +0800
---

This date is equal to the lastest git-commit date of the post file and can be automatically generated by the tool script `_scripts/py/update_posts_lastmod.py`. Similar to the other script `pages_generator.py` mentioned above, it is also be called from `tools/init.sh`, so it doesn't have to be used separately.

Table of Contents

By default, the Table of Contents (TOC) is displayed on the right panel of the post. If you want to turn it off globally, go to _config.yml and set the variable toc to false. If you want to turn off TOC for specific post, add the following to post's Front Matter:

---
toc: false
---

Comments

Similar to TOC, the Disqus comments is loaded by default in each post, and the global switch is defined by variable comments in file _config.yml . If you want to close the comment for specific post, add the following to the Front Matter of the post:

---
comments: false
---

Code Block

Markdown symbols ``` can easily create a code block as following examples.

This is a common code snippet, without syntax highlight and line number.

Specific Language

Using ```Language you will get code snippets with line Numbers and syntax highlight.

Note

: The Jekyll style {% raw %}{%{% endraw %} highlight LANGUAGE {% raw %}%}{% endraw %} or {% raw %}{%{% endraw %} highlight LANGUAGE linenos {% raw %}%}{% endraw %} are not allowed to be used in this theme !

# Yaml code snippet
items:
    - part_no:   A4786
      descrip:   Water Bucket (Filled)
      price:     1.47
      quantity:  4

Liquid codes

If you want to display the Liquid snippet, surround the liquid code with {% raw %}{%{% endraw %} raw {%raw%}%}{%endraw%} and {% raw %}{%{% endraw %} endraw {%raw%}%}{%endraw%} .

{% raw %}

{% if product.title contains 'Pack' %}
  This product's title contains the word Pack.
{% endif %}

{% endraw %}

Learn More

For more knowledge about Jekyll posts, visit the Jekyll Docs: Posts.