cleanscript.sh

#!/bin/bash

# Ensure the script is run as root
if [[ $EUID -ne 0 ]]; then
    echo "This script must be run as root"
    exit 1
fi

# Remove SSH authorized keys securely
if [[ -f ~/.ssh/authorized_keys ]]; then
    rm -f ~/.ssh/authorized_keys
fi

# Clear user credentials and history
rm -f ~/.aws/credentials ~/.git-credentials ~/.bash_history

# Clean system logs and temporary files safely
find /var/log -type f -exec truncate -s 0 {} \;
rm -rf /tmp/* /var/tmp/*

# Remove a specific user account if it exists
if id "tempuser" &>/dev/null; then
    deluser --remove-home tempuser
fi

# Lock the root account
passwd -l root

# Reset configuration files (example for Nginx)
if [[ -f /etc/nginx/nginx.conf ]]; then
    mv /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak
fi

echo "System cleanup and security measures applied successfully."