AWS EC2 Initial Setup Script

This script is designed to facilitate the initial setup of a newly instantiated AWS EC2 instance. It allows for a secure and swift transition from the default EC2 user setup by automating several setup tasks.

Features:

User and Hostname Setup: Prompts for and sets up a new username and a desired hostname.
SSH Key Configuration: Dynamically determines the current logged-in user to copy SSH key configurations to the new user.
Sudo Permissions: Creates a new user and grants it sudo permissions without needing a password.
Hostname Configuration: Allows setting up a custom hostname for the instance.
Preserve Hostname Modification: Modifies /etc/cloud/cloud.cfg to set preserve_hostname.

Usage:

Clone this Repository:

git clone https://github.com/HezhaKh/ops345.git

Navigate to the Script Directory:
```
cd /path/to/script/directory/
```
Make the Script Executable:
```
chmod +x setup_aws.sh
```
Execute the Script with Sudo:
```
sudo ./setup_aws.sh
```
Follow On-Screen Prompts:
- Enter the desired username.
- Enter the desired hostname.
- Follow any additional prompts to complete the setup.

Purpose:

This script is purposed to:

Verify root/sudo privileges.
Gather inputs for new username, hostname, and sudoers filename.
Set up a new user with sudo privileges without a password and with the correct permissions.
Copy SSH key configurations from the current user to the new user.
Apply the new hostname.
Modify preserve_hostname in /etc/cloud/cloud.cfg.
Provide a completion message with further instructions or actions.

Final Note:

Make sure to test the new user setup and configurations after the completion of the script and adjust as necessary.