CLI command to show the free memory. Much nicer than Avail...

V1.1	Division by zero bug fixed!

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 7686   19008  40.4% -lh5- b08f Nov  9  1996 MemFo
[generic]                 1548    3226  48.0% -lh5- 5cb7 Jan 31  1997 MemFo.guide
[generic]                  156     233  67.0% -lh5- b70e Jan 31  1997 MemFo.readme
[generic]                 1177    1873  62.8% -lh5- 658a Feb 10  1996 MemFo.guide.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         4 files   10567   24340  43.4%            Feb  3  1997