Set mail.au.edu.tw as email server

 The username should be au4051 or au4051@mail.au.edu rather than chiao@mail.au.edu.tw.

drupal smtp server settings

 

Setup calendar for thunderbird

 

firefox desktop icon

 /snap/firefox/current/default256.png

dynamic wallpaper background

1. sudo apt install mcron
2. Create a script, say /home/chiao/scripts/dynwall:
   #!/bin/bash
   sleep 3
   IMG=`find  /home/chiao/圖片/wallpaper/dawn/*.jpg | shuf -n 1`
   gsettings set org.gnome.desktop.background picture-options 'stretched'
   /usr/bin/gsettings set org.gnome.desktop.background picture-uri file:///${IMG}
3. Create /home/chiao/.config/cron/job.vixie
   5 * * * * /home/chiao/scripts/dynwall
   
4. Create /home/chiao/.config/autostart/mcron.desktop
   [Desktop Entry]
   Type=Application
   Exec=/usr/bin/mcron -d
   Hidden=false
   NoDisplay=false
   X-GNOME-Autostart-enabled=true
   Name[zh_TW]=mcron
   Name=mcron
   Comment[zh_TW]=
   Comment=
5. Reboot
   

Disable motion service

sudo update-rc.d motion disable
 

Missing figure caption

 While making pdf inside kile for book_chapterxx.tex for my /home/chiao/QuantitativeProgramming/LectureNotes/chapter11/ lecture note. The LaTeX src file exported from Jupyter cannot show the figure title.

 To fix this: comment out (put %) the 36th and 37th lines in book_chapter11.tex, e.g.

 %\DeclareCaptionFormat{nocaption}{}
 %\captionsetup{format=nocaption,aboveskip=0pt,belowskip=0pt}

The figure cation shows up now.

Change section number

 Jupyter change section number (Youtube)

Add utf-8 in case of Chinese cannot be read by Python IDLE

Put the lines at the first:

#!/usr/bin/env python
# coding: utf-8