Jul 25, 2025

Jul 24, 2025

ANSYS Fluent

 




GCI (Grid Convergence Index)

 GCI (Grid Convergence Index) is a quantitative measure to assess mesh independence in CFD, as recommended by Roache (1994). It estimates the discretization error based on Richardson Extrapolation by comparing solutions on different mesh sizes.














Jul 17, 2025

OJS Migration

/home/new/public_html

 cat /etc/apache2/sites-available/.ac.id.conf


RENAME DATABASE

mysqldump -u root -p old_db > old_db.sql

old_db to new_db

CREATE DATABASE new_db;

mysql -u root -p new_db < old_db.sql

DROP DATABASE old_db;

a2ensite .ac.id.conf

-----------
user new_db






Jul 16, 2025

Integrated Docker with WSL

 wsl -l -v

to check the Ubuntu runnign on the WSL 2 or not




Jul 8, 2025

Mail Merge in Word

 Untuk mengubah penulisan Rupiah dari excel mail merge ke word

{ MERGEFIELD Jumlah \# "#.##0" }

{ MERGEFIELD Jumlah \# "#.##0,00" }


Mengubah penulisan tanggal

{ MERGEFIELD date \@ "dd MMMM yyyy" }

Backup and Restore in Linux

BACKUP 

tar -czvf filename.tar /var/www/html 


RESTORE

tar -xzvf backup_name.tar.gz -C /path/to/restore_location

Jul 1, 2025

Upgrade Ubuntu 20.04 to 22.04 or 24.04

sudo apt update && sudo apt upgrade -y

sudo apt dist-upgrade -y

sudo apt autoremove --purge -y

------

Pastikan kamu punya update-manager-core:

sudo apt install update-manager-core

-----

sudo do-release-upgrade

------

Jika belum tersedia, tambahkan flag -d (development release):

sudo do-release-upgrade -d

-------

###################

SETELAH BERHASIL UPGRADE KE 22.04 dan REBOOT

ulangi proses:

sudo apt update && sudo apt upgrade -y

sudo do-release-upgrade

--------------

Jika upgrade belum tersedia (misalnya jika 24.04 baru rilis), tambahkan:

sudo do-release-upgrade -d

#################

SETELAH UPGRADE

Cek versi Ubuntu:

lsb_release -a





Jun 29, 2025

Shortcut in Visual Studio

Ctrl + /           to     Non-Active the script