Customized My_Linux-Lab Motd

1.Before Login

1. change the sudor file, so that it will not prompt double login

              sudo visudo

    change it to:

              username ALL=(ALL) NOPASSWD: /usr/local/bin/neofetch

    :wq

2.sudo vim /etc/profile.d/neofetch.sh

     change it to:

                #!/bin/bash

                 neofetch > /etc/issue                                                             

 

3. You need to make sure the script is executable:

       sudo chmod +x /etc/profile.d/neofetch.sh

 

4. Update permissions of /etc/issue (not recommended)

If you want to avoid using sudo in the script, you could change the permissions of /etc/issue temporarily. However, this is not recommended because modifying permissions for sensitive system files can create security risks.

   To do so, you would run:

              sudo chmod 666 /etc/issue


                                        2.After Login

Auto-Update /etc/motd for All Users

If you want to dynamically update /etc/motd (which is shown for every user who logs in), follow these steps:

Step 1: Create the Script

sudo vim /etc/profile.d/update-motd.sh

Step 2: Add the Script

Add the following content to include username, hostname, and IP address:

#!/bin/bash

# Generate a new MOTD dynamically for all users

echo "=====================================" | sudo tee /etc/motd > /dev/null

echo " Welcome $(whoami) to $(hostname)" | sudo tee -a /etc/motd > /dev/null

echo "=====================================" | sudo tee -a /etc/motd > /dev/null

echo "Username : $(whoami)" | sudo tee -a /etc/motd > /dev/null

echo "Hostname : $(hostname)" | sudo tee -a /etc/motd > /dev/null

echo "IP Address: $(hostname -I | awk '{print $1}')" | sudo tee -a /etc/motd > /dev/null

echo "=====================================" | sudo tee -a /etc/motd > /dev/null


Step 3: Give Execute Permissions

Make the script executable:

sudo chmod +x /etc/profile.d/update-motd.sh

This script will dynamically update /etc/motd with username, hostname, and IP address every time a user logs in.

Using Oh-My-Bash (Zsh-like Prompt in Bash)

Oh-My-Bash is a framework that provides pre-configured themes for a stylish Bash prompt.


Install Oh-My-Bash

bash -c "$(curl -fsSL https://raw.githubusercontent.com/ohmybash/oh-my-bash/master/tools/install.sh)"


Change to a Custom Theme

  1. Edit .bashrc:

vim ~/.bashrc

  1. Look for the line:

OSH_THEME="font"

Change it to a theme like:

OSH_THEME="pure"

  1. Apply changes:

source ~/.bashrc


Note:

    How to Remove the “Welcome to Ubuntu” Terminal Login Message

    That banner is controlled by the /etc/update-motd.d/ system, which dynamically builds the Message     of the Day (MOTD) shown at login.

    Step-by-Step: Disable Terminal Login Banner

  1. Open a terminal.
  2. Make all MOTD scripts non-executable:

                        sudo chmod -x /etc/update-motd.d/*

Comments

Post a Comment

Popular posts from this blog

Install Moodle 4.3 on Ubuntu 23.10

Image
Moodle, an acronym for Modular Object-Oriented Dynamic Learning Environment, is a robust open-source platform designed to facilitate online learning and course management. Developed by Martin Dougiamas in 2002, Moodle has evolved into one of the most widely used Learning Management Systems (LMS) globally. Whether you are an educator, administrator, or learner, Moodle offers a robust and flexible environment for creating and participating in online courses. In this tutorial, we will learn how to install Moodle 4.3 with the following specifications: ·          Virtual Cloud Server:  1 CPU, 1 GB RAM, 32 GB Storage ·          Operating System:  Ubuntu 22.04 LTS ·          Subdomain:  admission.sherubtse.edu.bt ·          SSL:  Let’s Encrypt ·          Web Server:...
Read more

Activate window and MS-Office with PowerShell

Image
Step 1: Open PowerShell as Administrator Press the Windows +R key on your keyboard. Type  powershell .                    2.  Right-click Windows PowerShell and choose:           👉 "Run as administrator"               3.   If prompted by the system, click Yes to allow changes.               Step 2: Copy and Paste the Command In the PowerShell window that opens, type or copy-paste this command: C:\Users\San_Deep> irm https://get.activated.win |iex Then press Enter . click 5 on your keyboard to Activate Online using KMS for both window and Office To activate only window, click 1 . And same for activation office only, Click 2 . Otherwise click 4 to activate both office and Window. Step 3:  The script will run. It may show progress bars or status messages like: "Checking Windows version...
Read more

GNS3 installation in Linux

Image
 GNS3 Installation in Linux These instructions are for Ubuntu and all distributions based on it (like Linux Mint).        sandip@MyLap:~$ sudo add-apt-repository ppa:gns3/ppa      sandip@MyLap:~$ sudo apt update      sandip@MyLap:~$ sudo apt install gns3-gui gns3-server (when prompted whether non-root users should be allowed to use wireshark and ubridge, select ‘Yes’ both times) If you want IOU support      sandip@MyLap:~$ sudo dpkg --add-architecture i386      sandip@MyLap:~$ sudo apt update      sandip@MyLap:~$ sudo apt install gns3-iou Install the following packages:      sandip@MyLap:~$ sudo apt-get install apt-transport-https ca-certificates curl software-properties-                common   Import the official Docker GPG key:      sandip@MyLap:~$ curl -fsSL https://download.docker.co...
Read more