Here's a full list of the Terraria Vanilla commands available
These commands can only be used on Console. Do not include "/" when typing on console.

help - Displays a list of commands.
playing - Shows the list of players. This can be used in-game by typing /playing into the chat.
clear - Clear the console window.
exit - Shutdown the server and save.
exit-nosave - Shutdown the server without saving.
save - Save the game world.
kick <player></player> - Kicks a player from the server.
ban <player></player> - Bans a player from the server.
password - Show password.
password <pass></pass> - Change password.
version - Print version number.
time - Display game time.
say <words></words> - Send a message to all players. They will see the message in yellow prefixed with <server></server> in the chat.
motd - Print MOTD.
motd <words></words> - Change MOTD.
dawn - Change time to dawn (4:30 AM).
noon - Change time to noon (12:00 PM).
dusk - Change time to dusk (7:30 PM).
midnight - Change time to midnight (12:00 AM).
seed - Shows the current seed of the world
settle - Settle all water.

All done! You can now use commands on your Terraria Vanilla Server!

Updated on: 05 / 12 / 2021