At last, an osx substitution for linux's free command.
With fisherman
fisher free
free
total used free appmem wired compressed
Mem: 8.00Gb 6.65Gb 1.95Gb 2.87Gb 2.09Gb 1.86Gb
+/- Cache: 1.24Gb 1.87Gb
Swap(43%): 2048Mb 877Mb 1171Mb
Load Avg: 1.63 1.95 1.95Olivier Refalo