Java and Eclipse

Hey all,

I'm having slight difficulty in getting an Eclipse project to compile manually on the command line. Using javac, could someone help point me in the direction with a directory as related:

GuiTrunk
/src/
/lib/
/bin/
/.settings/
/.classpath
/.project

Obviously, /src/ contains our source files and /lib/ has the required external jar files, with /bin/ being the destination for the .class files etc.

I'd love to help but I've never tried that before. I just use Eclipse to handle everything.