| Command | Description |
| ssh (username@ipadres) | Connect to server |
| ip a | Get the current IP address |
| sudo apt upgrade | Get the latest upgrades |
| sudo apt update | Update the upgrades |
| sudo apt install (name) | Installs software |
| sudo apt-get update && apt-get upgrade -y && apt autoremove -y | Gets updates, installs updates and auto removes old stuff |
| apt-get install curl | Installs curl |
| curl -sSL https://get.docker.com | sh | Gets docker installed through curl |
| apt install docker-compose -y | Installs docker compose |
| clear | Clears the screen/ history |
| whatis (app) | Explains what the program does |
| man (app) | Detailed explanation of the program |
| ls | See the files/ directories |
| ls -l | See the files/ directories (in a list) |
| ls -al | See the files/ directories (incl. Hiding items) |
| pwd | Print Working Directory (current location) |
| cd | Change directory |
| cd.. | One directory back |
| mkdir (name) | Make a directory |
| Rmdir (directory) | Removes a directory |
| Touch (filename) | Creates a file |
| nano | File editor |
| cat (filename) | Shows you what is in a file |
| cp (filename) (directory) | Copies a file to a directory |
| mv (filename) (directory) | Moves a file to a directory |
| rm (filename) | Removes a file |
| curl (locatoin > file/directory | Downloads from the internet |
| sudo find / -name “file” | Searches for a file |
| chmod +x (file) | Makes the files executable |
| ip address | Provides details of your network |
| resolvectl status | Provides you the DNS server |
| ping (website) | Is your website running |
| traceroute (website) | Provides trace to the destination |
| netstat | Provides the open poorts |
| sudo ufw allow (poort) | Opens a poort for usage |
| sudo ufw status | Provides the status |
| sudo ufw enable | Enables the service |
| uname -a | Provides details of your OS |
| sudo apt install neofetch | Installs a “nicer” tool to view OS info |
| neofetch | Provides “nicer” details of your OS |
| free | Shows details of the memory |
| df -H | Details of file system |
| ps -aux | Details on processes running |
| htop | Provides details of current processes (nicer) |
| kill -9 (process id) | Kills a process |
| pkill -f (process name) | Kills the process by named |
| sudo systemctl stop (service) | Stops a service |
| sudo systemctl start (service) | Starts a service |
| sudo systemctl restart (service) | Restarts a service |
| sudo systemctl status (service) | Provides status of the service |
| sudo reboot | Reboots the system |
| sudo shutdown | Shutdown the system |