Session 3 : Permissions, users, processes and package managers.

Task 3

1. Create a new user and a group

Create a new user named "osc" with a password.
Create a new group named "osc_group".
Add "osc" to "osc_group".
Grant sudo privileges to the user "osc".
Switch to "osc" user.

2. Change the permissions of a file

Create a directory named "permission_practice" in "osc"'s home directory.
Inside "permission_practice," create the following files:
- "public_file.txt" with read and write permissions for everyone.
- "private_file.txt" with read and write permissions only for the owner.
- "executable_script.sh" with read, write, and execute permissions for the owner and read and execute permissions for the group.

3. Change the owner of a file

Change the owner of "private_file.txt" to your main user (the one you created when you installed Linux).
Change the group of "private_file.txt" to "osc_group".

4. Process management

Start a new background process that runs "sleep 1000".
Kill the sleep process using its PID.
Open vim and then suspend it using ctrl+z.
Kill the suspended vim process using its name.
Verify that the vim and sleep processes are no longer running using the appropriate command.

5. Package management

Install the neofetch package.
Uninstall the neofetch package.

Submission Guidelines

If you did not name your files as instructed, your task will be marked as "did not submit."

Create a new folder named "Session3" in your GitHub repository.
Document your steps and commands used in a text file named "session3.txt." and place it inside the "Session3" folder.
Capture a screenshot for each step to show the results of your commands. Save each screenshot with a meaningful name (e.g., S3_step1.png, S3_step2.png) and place them inside the "Session3" folder.

If you know how to use Markdown, you can use it to format your file and embed your screenshots.