um

#!/usr/bin/env sh

Pid=$1

if [ "$Pid" = "" ]; then
    echo 'please input pid'
    exit 1
fi

echo 'test'

prev=0

for i in `seq 1 10000`;
do
    raw=`cat /proc/$Pid/status | grep 'VmRSS'`
    now=`echo $raw | awk '{ print $2 }'`

    if [ "$now" -eq "$prev" ]; then
       	echo "${raw} ="
    elif [ "$now" -gt "$prev" ]; then
       	    echo "${raw} +"
    else
       	    echo "${raw} - %%%%%%%%%%%%%%%%"
    fi

    prev=$now

    sleep 1
done