How do i see the actual memory usage?

[Radek Vokál]

On Thu, 2005-10-06 at 10:36 +0200, Søren Neigaard wrote:
> if i do a "top" it always uses almost all memory, no matter if nothing 
> is running on my system, so im guessing that "top" does not show me the 
> actual memory usage, but rather the memory the system has "reserved" or 
> something.
> 
> So is there a way to see the actual memory usage, so i can see how much 
> memory is actuall available on the system?

use `free`

Radek