Darwin: launching a self compiled program.

[cwhiii]

I am just starting to learn C. I have created a "Hello, World." program, and used GCC in Darwin to compile it. It does compile correctly, and I can launch/run it by double clicking on the icon on the Desktop.

My question is, how do I run it from Darwin?

I've tried just typing in the name, but get the error: "No such file or directory"
Do I have to specify the path even when I'm in the correct directory?

[Dysfunction]

sounds like the directory it's in is not in the path. do ./programname

[cwhiii]

sounds like the directory it's in is not in the path. do ./programname

Thanks.