,exec with arguments

[evilmind]

How can i pass arguments to function from client commandline? Let's say i have some test function to show some text:

sub zprava(text)
uo.print(text)
end sub

,exec zprava shows error, of course - Invalid number of arguments

But i'm unable to find some way to pass thet arguments - any spaces, brackets or quotes just dont work. Thanks for help.