diff --git a/.github/workflows/jekyll.yml b/.github/workflows/jekyll.yml
new file mode 100644
index 00000000000..a646532c713
--- /dev/null
+++ b/.github/workflows/jekyll.yml
@@ -0,0 +1,64 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+# Sample workflow for building and deploying a Jekyll site to GitHub Pages
+name: Deploy Jekyll site to Pages
+
+on:
+  # Runs on pushes targeting the default branch
+  push:
+    branches: ["master"]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  # Build job
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@55283cc23133118229fd3f97f9336ee23a179fcf # v1.146.0
+        with:
+          ruby-version: '3.1' # Not needed with a .ruby-version file
+          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+          cache-version: 0 # Increment this number if you need to re-download cached gems
+      - name: Setup Pages
+        id: pages
+        uses: actions/configure-pages@v3
+      - name: Build with Jekyll
+        # Outputs to the './_site' directory by default
+        run: bundle exec jekyll build --baseurl "${{ steps.pages.outputs.base_path }}"
+        env:
+          JEKYLL_ENV: production
+      - name: Upload artifact
+        # Automatically uploads an artifact from the './_site' directory by default
+        uses: actions/upload-pages-artifact@v2
+
+  # Deployment job
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2
diff --git a/CNAME b/CNAME
new file mode 100644
index 00000000000..5369f88d0fa
--- /dev/null
+++ b/CNAME
@@ -0,0 +1 @@
+fattt.org.edu.kg
\ No newline at end of file
diff --git a/_config.yml b/_config.yml
index 12c16cdaa22..629ab8d7588 100644
--- a/_config.yml
+++ b/_config.yml
@@ -24,9 +24,9 @@
 # You can create any custom variable you would like, and they will be accessible
 # in the templates via {{ site.myvariable }}.
 
-title: Your awesome title
-email: your-email@domain.com
-author: GitHub User
+title: My personal blog
+email: 1522544392@qq.com
+author: FAtGuy101
 
 # Copyright setting
 # You can use any html code, currently below placeholders are available:
@@ -40,7 +40,7 @@ author: GitHub User
 #   "Copyright (c) 2017-{currentYear} <a href="https://example.com">{author}</a>"
 #   "Copyright © 2017-2021 Foobar"
 #
-copyright: "Unpublished Work (cleft) 2017-{currentYear} {author}"
+copyright: "Unpublished Work (cleft) 2023-{currentYear} {author}"
 
 description: >- # this means to ignore newlines until "baseurl:"
   Write an awesome description for your new site here. You can edit this
diff --git a/_posts/2023-09-17-Extended commands.md b/_posts/2023-09-17-Extended commands.md
new file mode 100644
index 00000000000..ac53be4d84b
--- /dev/null
+++ b/_posts/2023-09-17-Extended commands.md	
@@ -0,0 +1,105 @@
+---
+layout: post
+title: Extended commands
+subtitle: Each post also has a subtitle
+categories: markdown
+tags: [Linux]
+---
+
+## mkpasswd 命令生成随机复杂密码
+
+mkpasswd命令生成随机复杂密码，前提安装expect，然后执行mkpasswd命令即可生成随机的密码。
+
+一、基本的命令安装
+安装expect：   yum install -y expect
+
+
+    -l #      (密码的长度定义, 默认是 9)
+    -d #      (数字个数, 默认是 2)
+    -c #      (小写字符, 默认是 3)
+    -C #      (大写字符, 默认是 2)
+    -s #      (特殊字符, 默认是  1)
+    -v        (详细。。。)
+    -p prog   (程序设置密码, 默认是 passwd)
+
+详细参数，用如下命令查看：
+
+创建了一个长度为20位,包括数字个数5个，包含小写字母个数5个，包含大写字母个数5个，包含特殊符号个数5个。
+
+```
+mkpasswd  -l 20 -d 5 -c 5 -C 5 -s 5 
+Z}K7hp0UPJ6v@&,c5{d3
+```
+
+随机密码最短只能7位（两个数字，两个小写字母，两个大写字母，一个特殊符号）
+
+```
+mkpasswd -l 5
+impossible to generate 5-character password with 2 numbers, 2 lowercase letters, 2 uppercase letters and 1 special characters.
+
+```
+
+
+
+## bc 计算器
+
+bc 命令是任意精度计算器语言，通常在linux下当计算器用。它类似基本的计算器, 使用这个计算器可以做基本的数学运算。
+
+- -i：强制进入交互式模式；
+- -l：定义使用的标准数学库
+- ； -w：对POSIX bc的扩展给出警告信息；
+- -q：不打印正常的GNU bc环境信息；
+- -v：显示指令版本信息；
+- -h：显示指令的帮助信息。
+
++ quit： 退出
+
+**通过管道符**
+
+```
+$ echo "15+5" | bc
+20
+```
+
+scale=2 设小数位，2 代表保留两位:
+
+```
+$ echo 'scale=2; (2.777 - 1.4744)/1' | bc
+1.30
+```
+
+bc 除了 scale 来设定小数位之外，还有 ibase 和 obase 来其它进制的运算:
+
+```
+$ echo "ibase=2;111" |bc
+7
+```
+
+**进制转换**
+
+```
+#!/bin/bash
+
+abc=192 
+echo "obase=2;$abc" | bc
+```
+
+执行结果为：11000000，这是用bc将十进制转换成二进制。
+
+```
+#!/bin/bash 
+
+abc=11000000 
+echo "obase=10;ibase=2;$abc" | bc
+```
+
+执行结果为：192，这是用bc将二进制转换为十进制。
+
+计算平方和平方根：
+
+```
+$ echo "10^10" | bc 
+10000000000
+$ echo "sqrt(100)" | bc
+10
+```
diff --git a/about.html b/about.html
index 8d027a1faaf..cfb17eb941e 100644
--- a/about.html
+++ b/about.html
@@ -6,12 +6,6 @@
 <h2>About</h2>
 
 <p>
-:art:&nbsp;Yet another theme for elegant writers with modern flat style
-and beautiful night mode.
+My personal blog
 </p>
 
-<p>
-Hey, nice to meet you, you found this Jekyll theme. Here the yet another
-theme is a modern theme, and it's quite clear, clean and neat for writers
-and posts.
-</p>