add user defined layouts in lyx for windows

 Put into: 

c:\Users\chiao\AppData\Roaming\LyX2.3\layouts\

sudo a2ensite default-ssl

 sudo a2ensite default-ssl

 sudo systemctl reload apache2

check lets encrypt renow date

 sudo certbot certificates

Uninstall mathematica

 cf: https://support.wolfram.com/12473

 Remove the subdirectories:

• /usr/local/Wolfram/Mathematica/
• /usr/share/Mathematica/
• ~/.Mathematica/
• ~/.Wolfram/
• ~/.cache/Wolfram

 

 

clip video ffmpeg

ffmpeg -i a.mp4 -ss 00:10:57 -to 00:23:00 -c:v copy -c:a copy output2.mp4

However, the size of the clipped video will take too large. In the case of cutting a 30 second video clip, the size is 2.4mb, while the size using kdnlive is only about 900kb.

Show resize info windows using mouse

 Inside CompizConfig, activate "Resize Info"

Clone 教學網頁

1. Rename drupal0_from_9 database to drupal10_from_9_pi4_20240402
2. Using command line mysql instead of phpmyadmin to clone draupal0_from_9 database from kpci7 to pi4
3. Using sudo to clone public_html/drupal10_from_9 from kpci7 to pi4
4. In pi4 phpmyadmin, update the drupal10_from_9 database privileges for drupaladmin