Even though most game servers are managed via panel, basic Linux knowledge is useful, especially with a VPS.
Navigation
ls lists files. cd /path/to/folder changes directory. pwd shows current location.
File operations
cp file1 file2 copies. mv file1 file2 moves/renames. rm file deletes. mkdir folder creates a directory.
Text editing
nano file opens a simple editor. Save with Ctrl+O and exit with Ctrl+X.
Network
ss -tulpn shows active ports. ufw allow 25565 opens a port in the firewall.
