scp uses

Can someone show me an example of how to scp a file from 192.168.0.1 located at /home/usr/file.txt to 192.168.0.2 at /home/usr2/file.txt ?? I can't figure out how to copy a file from one system to another system using scp. Thanks! -- Tom Nielsen Neuro Logic Systems 805.389.5435 x18 www.neuro-logic.com