john@john-P-6831FX:~$ free -h
             total       used       free     shared    buffers     cached
Mem:          2.9G       1.4G       1.5G        13M        62M       486M
-/+ buffers/cache:       925M       2.0G
Swap:         3.0G         0B       3.0G
john@john-P-6831FX:~$