Update README.md

Fixes #2.

01_05.md

@@ -0,0 +1,28 @@
+# Learning Jenkins, 01-05: Install Jenkins on Ubuntu
+
+# Prerequisites
+The target system should be running a recent version of the Ubuntu operating system.
+
+You will need to be able to access the system via CLI, most likely over SSH, and via HTTP on port `8080`.
+
+
+You will need to have `root` permission on the target system, specifically so you can run commands using `sudo`.
+
+# Installation
+In a terminal, run the following commands:
+```
+wget -q -O - https://pkg.jenkins.io/debian-stable/jenkins.io.key | sudo apt-key add -
+sudo sh -c 'echo deb https://pkg.jenkins.io/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list'
+sudo apt-get update -y
+sudo apt-get -y install openjdk-11-jdk
+sudo apt-get -y install jenkins
+sudo cat /var/lib/jenkins/secrets/initialAdminPassword
+```
+
+# Using the Initial Admin Password
+Run the following command and copy the output:
+```
+cat /var/lib/jenkins/secrets/initialAdminPassword
+```
+
+Open a browser to [localhost:8080](http://localhost:8080) and enter the initial admin password.

README.md

@@ -1,34 +1,36 @@
-# Learning Jenkins
-This is the repository for the LinkedIn Learning course `Learning Jenkins`. The full course is available from [LinkedIn Learning][lil-course-url].
+# Learning Jenkins, 01-05: Install Jenkins on Ubuntu
 
-_See the readme file in the main branch for updated instructions and information._
-## Instructions
-This repository has branches for each of the videos in the course. You can use the branch pop up menu in github to switch to a specific branch and take a look at the course at that stage, or you can add `/tree/BRANCH_NAME` to the URL to go to the branch you want to access.
+## Prerequisites
+The target system should be running a recent version of the Ubuntu operating system.
 
-## Branches
-The branches are structured to correspond to the videos in the course. The naming convention is `CHAPTER#_MOVIE#`. As an example, the branch named `02_03` corresponds to the second chapter and the third video in that chapter. 
-Some branches will have a beginning and an end state. These are marked with the letters `b` for "beginning" and `e` for "end". The `b` branch contains the code as it is at the beginning of the movie. The `e` branch contains the code as it is at the end of the movie. The `main` branch holds the final state of the code when in the course.
+You will need to be able to access the system via CLI, most likely over SSH, and via HTTP on port `8080`.
 
-When switching from one exercise files branch to the next after making changes to the files, you may get a message like this:
 
-    error: Your local changes to the following files would be overwritten by checkout:        [files]
-    Please commit your changes or stash them before you switch branches.
-    Aborting
+You will need to have `root` permission on the target system, specifically so you can run commands using `sudo`.
 
-To resolve this issue:
-	
-    Add changes to git using this command: git add .
-	Commit changes using this command: git commit -m "some message"
+## Installation
+In a terminal, run the following commands:
+```
+curl -fsSL https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key | \
+  sudo tee /usr/share/keyrings/jenkins-keyring.asc > /dev/null
 
-## Installing
-1. To use these exercise files, you must have the following installed:
-	- [list of requirements for course]
-2. Clone this repository into your local machine using the terminal (Mac), CMD (Windows), or a GUI tool like SourceTree.
-3. [Course-specific instructions]
+echo deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] \
+  https://pkg.jenkins.io/debian-stable binary/ | \
+  sudo tee /etc/apt/sources.list.d/jenkins.list > /dev/null
 
+sudo apt-get update -y
 
-[0]: # (Replace these placeholder URLs with actual course URLs)
+sudo apt-get -y install openjdk-11-jdk
 
-[lil-course-url]: https://www.linkedin.com/learning/
-[lil-thumbnail-url]: http://
+sudo apt-get -y install jenkins
 
+sudo cat /var/lib/jenkins/secrets/initialAdminPassword
+```
+
+## Using the Initial Admin Password
+Run the following command and copy the output:
+```
+sudo cat /var/lib/jenkins/secrets/initialAdminPassword
+```
+
+Open a browser to [localhost:8080](http://localhost:8080) and enter the initial admin password.