enter commands in terminal
 

Hi there.

If I open a server on windows, it opens a console where i can type stuff like "say hello" to print hello to the players in the game.

On OS X, it opens the terminal which acts as the console but how do I execute commands there? typing "say hello" has no effect :(

You probably don't. On Windows it's not "the" console (i.e. what cmd.exe uses), but just the game's own log window. Try the webadmin console, if the Mac version doesn't have a log window that allows you to type in.

BTW: On Windows there's a difference between launching the game via
"UT2004.exe ... -server" or "UCC.exe server ..." - the former starts the game without a viewport and instead creates a tray icon and opens the log window, whereas the latter really uses the system console for log output and doesn't allow input there either.