What version of Slackware? It seems to be present on my Slack 13/64 system:
Code:
sasha@reactor: free
total used free shared buffers cached
Mem: 4057864 1629212 2428652 0 338160 465260
-/+ buffers/cache: 825792 3232072
Swap: 1020088 0 1020088
Sasha
EDIT -- sorry, I see the version in the thread title! (Duh!!)