#!/bin/rc 
# show available and used memory in 
# user-discernible format. 
all=`{cat /dev/swap | sed 's,/, ,g'} 
# 4096/(1024*1024)
pageinmb=0.00390625 
mem = `{echo $all(1)^'*'^$pageinmb | hoc} 
memtotal= `{echo $all(2)^'*'^$pageinmb | hoc} 
swap = `{echo $all(4)^'*'^$pageinmb | hoc} 
swaptotal = `{echo $all(5)^'*'^$pageinmb | hoc} 
echo memory: $mem MB used, $memtotal MB total 
echo swap: $swap MB used, $swaptotal MB total