#!/bin/sh

for i in $@
do
    RES="$(ps -x -o "comm rss" | grep -Ei "^$i ")"
    if [ ! -z "$RES" ]
    then
        echo "$RES" | xargs -n2 -I{} echo "Adding: {} KB"
        TOTAL=$(( TOTAL + $(echo "$RES" | awk '{ sum=sum+$2; } END { printf("%d", sum); }') ))
    else
        echo "$@ not found."
    fi
done
echo $TOTAL | awk '{ printf("Summary: %.2f MB\n", $1/1024); }'