# 12:00:01 kbmemfree kbmemused  %memused kbbuffers  kbcached kbswpfree kbswpused  %swpused  kbswpcad
(LC_TIME="POSIX" sar -r )  | egrep -iv 'linux|mem|average' | grep . | awk '{ print $1 " " $2+$3 " " $3-$6 " "   100-(($6/($2+$3))*100) " " 100-((($3-$6)/($2+$3))*100)  " " $9 }'|sed 's/%//g'
# time	total-ram kbmemused-kbcached(reallyused) %cached  %kbmemused-kbcached(reallyused) %swpused