System Management Commands
sudo — Execute as Administrator Run commands with elevated privileges when you need system-level access. sudo yum update # Update system packages sudo systemctl restart nginx # Restart a service sudo passwd username # Change user password systemctl — Service Management Control system services and daemons efficiently. systemctl start apache2 # Start service systemctl stop apache2 # Stop service systemctl restart apache2 # Restart service systemctl status apache2 # Check service status systemctl enable apache2 # Enable on boot yum — Package Manager (Amazon Linux 2) Install, update, and manage software packages on your system. yum update # Update all packages yum install nginx # Install package yum remove package-name # Remove package yum search keyword # Search for package