I have two micro-controllers which are connected to my computer(ubuntu 12.04) through serial-USB cables.One of the controllers (ttyUSB0) is programmed such that it sends data serially and another (ttyAMC0) is programmed to receive data serially.So please any one could guide on achieving a link(send the data available at ttyUSB0 to ttyAMC0 ) between these two hardware ports.Thanks in advance.  
Linking two hardware serial ports
hardware;tty