'mutop' uses my other script 'mu' to sort any process listed in "ps aux" by memory usage. The last, the most [memory consumer]. COPY PASTE TO DOWNLOAD: wget -O /tmp/mutop.tgz https://gist.github.com/rcmorano/5053427/download; sudo mv /tmp/$(tar zxvf /tmp/mutop.tgz -C /tmp |grep mutop) /usr/local/bin/; sudo chmod +x /usr/local/bin/mutop

mutop

#!/bin/bash
#
# Copyright (C) 2013, Roberto C. Morano <rcmova@gmail.com>
# 
# This software is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# 
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
#
# As a special exception, if you link this library with other files to
# produce an executable, this library does not by itself cause the
# resulting executable to be covered by the GNU General Public License.
# This exception does not however invalidate any other reasons why the
# executable file might be covered by the GNU General Public License.



# PoC that it [mostly] works:
# MU=""; for portion in $(sudo mutop |grep -v "^NaN\|^Permission\|^MU"|awk '{print $1}'); do MU=$(expr $MU + $portion); done; echo $(expr $MU / 1024)MB
# Now compare the total amount with 'free -m' and it should be similar

echo "MU PID NAME"

ps aux | grep -v VSZ | while read line
do
    PID=$(echo $line | awk '{print $2}')
    NAME=$(echo $line | awk '{for (i=11;i<=NF;i++) printf $i" "}')
    MU=$(mu $PID || echo NaN)
    echo "$MU $PID $NAME"
done | sort -n -k 1