diff --git a/learning-linux/Linux_ACELI.md b/learning-linux/Linux_ACELI.md
index c85c2d3c19b95e731f4f54f62e9a4a31291e1a42..bd4bb8817c3af2411a062457c05a9a72ab481c02 100644
--- a/learning-linux/Linux_ACELI.md
+++ b/learning-linux/Linux_ACELI.md
@@ -5,7 +5,7 @@ author: P.Y. Barriat
 description: https://dev.to/nikolab/complete-list-of-github-markdown-emoji-markup-5aia
 backgroundImage: url('assets/back.png')
 _backgroundImage: url('assets/garde.png')
-footer: 13/04/2023 | An introduction to Linux | PY Barriat
+footer: 10/04/2025 | An introduction to Linux | PY Barriat
 _footer: ""
 paginate: true
 _paginate: false
@@ -14,12 +14,12 @@ _paginate: false
 An introduction to Linux<!--fit-->
 ===
 
-https://forge.uclouvain.be/barriat/learning-linux
+https://forge.uclouvain.be/elic/learning.git
 
 ![h:280](assets/www.makeuseof.com.png)
 
 **Pierre-Yves Barriat**
-ACELI Training Sessions `April 13th, 2023`
+ACELI Training Sessions `April 10th, 2025`
 
 ---
 
@@ -44,6 +44,18 @@ ACELI Training Sessions `April 13th, 2023`
 
 ---
 
+- **Core Components**  
+  The "Linux Kernel" is the core of the operating system, which interacts directly with the hardware.
+  > Others kernels before Linux: Minix, GNU Hurd, BSD, etc
+
+- **GNU Tools**  
+  Linux is often used with tools from the GNU project (like compilers, shell, and libraries), making it a complete operating system when combined with the kernel.
+
+- **Open Source**  
+  The source code for Linux is freely available, meaning you can modify and distribute it.
+
+---
+
 # What is a Linux distribution ?
 
 - Many versions of Linux
@@ -59,9 +71,44 @@ ACELI Training Sessions `April 13th, 2023`
 
 ---
 
-# Why Linux ?
+## Popular Linux Distributions
+
+  - **Ubuntu**: User-friendly, ideal for beginners.
+  - **Fedora**: Cutting-edge features and software.
+  - **Debian**: Stable and reliable, popular in scientific environments.
+  - **Rocky**: Enterprise-focused, ideal for servers.
+  - **Arch Linux**: Lightweight and customizable (for advanced users).
+  
+## Why Multiple Distros ?
+
+Different distributions cater to different needs: some are easier for beginners, while others are tailored to performance, security, or customization.
+
+---
+
+# Why Linux for scientists ?
+
+As a scientist, your workflow involves complex simulations, data analysis, and working with scientific tools. 
+
+Linux provides a stable, powerful, and open environment tailored for research purposes. 
+
+Here's why it's better than Windows for scientific work.
+
+---
+
+- **Performance and Efficiency**  
+  Linux is known for being fast and efficient. It handles large computational tasks better than Windows, making it ideal for simulations and data-heavy research.
+
+- **Flexibility**  
+  You can customize Linux to meet the specific needs of your research, from installing specific software to adjusting the environment.
+
+- **Better Use of System Resources**  
+  Unlike Windows, Linux runs with minimal overhead, giving you more resources for your tasks.
+
+---
+
+# Why Linux for all ?
 
-- **Linux is free**
+- Linux is **free** and open-source
 - Linux is supported on older computers (perf & updates)
 - Linux has many more free applications
 
@@ -102,6 +149,32 @@ ACELI Training Sessions `April 13th, 2023`
 
 ---
 
+# Robust software support
+
+- **Scientific Software**  
+  Many popular scientific tools (e.g., ROOT, MATLAB, Python, R, and SciPy) work seamlessly on Linux.
+
+- **Package Management**  
+  Linux distributions offer package managers like APT, YUM, and Pacman, making it easy to install, update, and manage software.
+
+- **Compilers and Libraries**  
+  Linux has native support for most programming languages and compilers (e.g., GCC for C/C++, Fortran) and scientific libraries.
+
+---
+
+# Better for High-Performance Computing (HPC)
+
+- **Parallel Computing**  
+  Linux is optimized for high-performance computing, supporting parallel processing and multi-core usage that is crucial for simulations and data analysis.
+
+- **Supercomputing**  
+  The majority of the world's supercomputers run Linux, making it the go-to operating system for large-scale simulations and scientific research.
+
+- **Cluster Management**  
+  Tools like OpenMPI and SLURM work flawlessly on Linux for managing distributed computing environments, common in physics research.
+
+---
+
 # Why not Linux ?
 
 1. Hardware compatibility (printers, etc)
@@ -112,7 +185,7 @@ ACELI Training Sessions `April 13th, 2023`
 
 1. Many devices "Linux compatible"
 2. Emulation (eg virtualbox), online usage, alternatives (GIMP)
-3. Difficult, but it exists emulation and Steam
+3. More and more games on Linux (Steam OS) and emulation
 
 ---
 
@@ -127,7 +200,7 @@ ACELI Training Sessions `April 13th, 2023`
 - better driver support
 - LTS and staging releases available as per user needs
 
-> get the latest Ubuntu LTS : [ubuntu-22.04.2-desktop-amd64.iso](https://releases.ubuntu.com/jammy/ubuntu-22.04.2-desktop-amd64.iso)
+> Get Ubuntu LTS : [ubuntu-22.04.5-desktop-amd64.iso](https://releases.ubuntu.com/jammy/ubuntu-22.04.5-desktop-amd64.iso)
 
 ---
 
@@ -137,19 +210,24 @@ Using a virtual machine: test Linux without changing anything to your computer
 
 You need to install a VM and then install the Linux inside
 
-- Get a Virtual Machine: https://www.virtualbox.org/wiki/Downloads
-  > VirtualBox + Extension Pack
+Take a look in the `learning-vscode` folder in:
+https://forge.uclouvain.be/elic/learning.git
 
-- Install Linux in a VM: [Install Linux Inside Windows Using VirtualBox](https://itsfoss.com/install-linux-in-virtualbox/)
-  > Step by Step Guide
+> Using WSL in Windows 11 in order to use Linux
 
 ---
 
 # Linux GUI
 
+Most Linux distributions come with a desktop environment (e.g., GNOME, KDE) that provides a graphical interface similar to Windows.
+
+You can interact with files, applications, and settings using windows, icons, and menus.
+
+---
+
 ![bg right 95%](assets/GUI.png)
 
-A Linux distribution contains a [display server](https://www.google.com/search?tbm=isch&q=display+manager), a [window manager](https://www.google.com/search?tbm=isch&q=windows+manager) (manage windows, panel, menus, dash interfaces and core applications), and a [desktop environment](https://www.google.com/search?tbm=isch&q=graphical+interface) (eg status bars, drag-and-drop capabilities, etc)
+A desktop environment contains a [display server](https://www.google.com/search?tbm=isch&q=display+manager), a [window manager](https://www.google.com/search?tbm=isch&q=windows+manager) (manage windows, panel, menus, dash interfaces and core applications), and a [desktop environment](https://www.google.com/search?tbm=isch&q=graphical+interface) (eg status bars, drag-and-drop capabilities, etc)
 
 These 3 items are **bundled together** to make what is known as a `GUI environment`
 
@@ -159,34 +237,38 @@ These 3 items are **bundled together** to make what is known as a `GUI environme
 
 **Using Linux through a GUI environment is similar to Windows or MacOSX**
 
-Linux users do not install software the same way that Windows users do: Linux has a tool known as a `package manager`
+Linux users do not install software the same way that Windows users do: 
+Linux has a tool known as a `package manager`
 
 A package manager provides a way to search for software, install software, keep the software up to date and remove the software
 > Similar to Google or Apple store
 
 ---
 
-# Linux CLUI
+# Linux CLI
 
-Using Linux with GUI, it's already great ! 
-**Using CLUI = unlock the power of Linux !**
+Using Linux with **GUI**, it's already great ! 
+Using **CLI = unlock the power of Linux !**
 
-Each Linux system contains a terminal
+**CLUI** = **C**ommand **L**ine **U**ser **I**nterface (= **CLI**)
 
-A terminal is where you enter Linux commands
+  - It is one of the many strengths of Linux and can be more efficient than using the GUI
 
-It's called the **C**ommand **L**ine **U**ser **I**nterface
+  - The CLI allows you to interact with the system by typing text-based commands into a terminal.
 
-CLUI is one of the many strengths of Linux and can be more efficient than using the GUI
+  - While more intimidating at first, the CLI is extremely powerful for advanced operations, automation, and performance.
 
 ---
 
-# Linux CLUI
+## Which to Use ?
+
+GUI is great for beginners or tasks that require minimal technical knowledge.  
+CLI is essential for advanced users, system administration, and scripting.
 
-- CLUI allows users to be independent of distros (or UNIX systems like OSX)
-- CLUI saves system resources which are consumed by GUIs
-- CLUI allows users to easily work at distance (SSH)
-- CLUI allows developers to join together simple (and less simple) commands to do complex things and automate... whatever you want to
+- CLI allows users to be independent of distros (or UNIX systems like OSX)
+- CLI saves system resources which are consumed by GUIs
+- CLI allows users to easily work at distance (SSH)
+- CLI allows developers to join together simple (and less simple) commands to do complex things and automate... whatever you want to
 
 > People tend to think command line is difficult. It's not.
 
@@ -236,7 +318,7 @@ mmv '*.JPG' '#1.jpg'
 Download a youtube video ?
 
 ```bash
-youtube-dl https://www.youtube.com/watch?v=G7KNmW9a75Y&ab_channel=MileyCyrusVEVO
+yt-dl https://www.youtube.com/watch?v=G7KNmW9a75Y&ab_channel=MileyCyrusVEVO
 ```
 
 Convert color pictures in BW at once ? 
@@ -250,6 +332,8 @@ do
 done
 ```
 
+<!-- _footer: "" -->
+
 ---
 
 # Online Linux Demo
@@ -267,13 +351,13 @@ done
 # What you'll learn
 
 - Navigating the File System
-  > Get up and running with the CLUI by navigating directories and files
+  > Get up and running with the CLI by navigating directories and files
 
 - Viewing and Changing Files and Directories
-  > Learn to manipulate directories and files from the CLUI
+  > Learn to manipulate directories and files from the CLI
 
 - Configuring the Environment
-  > Learn to configure the environment using the CLUI
+  > Learn to configure the environment using the CLI
 
 - Accessing Linux remotely
   > Learn to use SSH  (basics)
@@ -475,14 +559,11 @@ ssh -X -i ~/.ssh/id_rsa.ceci pbarriat@gwcism.cism.ucl.ac.be
 
 Using a SSH client to reach a distant Linux Workstation
 
-**mobaXTerm** is free and easy to use
-> allow you to test a Linux environmment but in CLUI only
-
-Get a SSH client
-https://mobaxterm.mobatek.net/download-home-edition.html
+Take a look in the `learning-vscode` folder in:
+https://forge.uclouvain.be/elic/learning.git
 
-How to use a SSH client
-https://support.ceci-hpc.be/doc/_contents/QuickStart/ConnectingToTheClusters/MobaXTerm.html
+> see "VS Code nice extensions"
+> `Remote - SSH` : lets you use any remote machine with a SSH server
 
 ---
 
@@ -493,7 +574,7 @@ https://support.ceci-hpc.be/doc/_contents/QuickStart/ConnectingToTheClusters/Mob
 - nedit (simple text editor available in most distributions)
 - Kate, Gedit (KDE, Gnome)
 
-### CLUI
+### CLI
 
 - vi (available in all Unix systems) and **vim** (vi improved)
   > Difficult to learn for beginners used to graphical text editors
@@ -527,7 +608,7 @@ Backup on external drive ?
 
 |  Advantages of Linux  |  Disadvantages of Linux |
 | --------------------- | ---------------------------------- |
-|  Cost                 | Not easy to master ( **CLUI only** )  |
+|  Cost                 | Not easy to master ( **CLI only** )  |
 |  Security and robustness | Hardware compatibility issues ( sometimes ) |
 |  Freedom | Not compatible with some Windows software |
 |  Software ||
diff --git a/learning-linux/Linux_ACELI.pdf b/learning-linux/Linux_ACELI.pdf
index c8bdba679000653c3b500eb7aa0bb32cd619c3ba..389f9b5719aaf1dda45571ca3bf6a00b9c9d4ef0 100644
Binary files a/learning-linux/Linux_ACELI.pdf and b/learning-linux/Linux_ACELI.pdf differ