#!/bin/shif [ $# -ne 1 ]; then  echo "Usage: `basename $0` process_name"  exit 1fiAPPNAME=$1PROC="`ps -ef | grep "$APPNAME" | grep -v "grep" | grep -v "awk" | grep -v $0 | awk '{print $1}'`"if [ -z $PROC ]; then  echo "invalid process_name"  exit 1fiSMAPS="/proc/$PROC/smaps"STATUS="/proc/$PROC/status"echo "proc ---$PROC----"OLDHEAP="0"while :do  #HEAP="`cat $STATUS | grep "VmData" | awk '{print $2}'`"  HEAP=`cat $SMAPS | grep -A 5 "heap" | grep "Rss" | awk '{print $2}'`  if [ $HEAP -lt $OLDHEAP ]; then    echo "`date` HEAP -`expr $OLDHEAP - $HEAP` to $HEAP kb"    OLDHEAP=$HEAP  elif [ $HEAP -gt $OLDHEAP ]; then    echo "`date` HEAP +`expr $HEAP - $OLDHEAP` to $HEAP kb"    OLDHEAP=$HEAP  fi  sleep 1done