Script question - external lines in the game

[Ronald van der Meer]

Guys,

It might sound a little bit stupid but i would like to know if there is 
a way i'm able to send lines to the game (so console will display the 
lines) with help of a external script running on bash.

I was thinking about something like telnetting into the server on a 
maybe game port? Well i hope you guys know something... it should be 
possible.

Thanks in advance.

--
Ronald