#!/bin/sh
set -e
d=$(mktemp -d)
trap "cd /; rm -r '$d'" EXIT
cd "$d"

web_content_pids()
{
    top -w512 -bn1 -o '%MEM' | sed -e '1,/^$/d' | {
        while read line
        do set -- $line
           [ "${12} ${13}" = "Web Content" ] || continue
           echo $1
        done
    }
}

lesser_tabs()
{
    web_content_pids > pids
    if [ $(wc -l < pids) -gt 1 ]
    then
        sed 1d < pids | tac
    fi
}

FIRST=y
for tab in $(lesser_tabs)
do
    if [ "$FIRST" ]
    then
        FIRST=
        ps $tab
        (set -x
         kill "$tab")
    fi
    ps $tab
done