Linux内存泄漏检测shell脚本

  #!/bin/sh    if [ $# -ne 1 ]; then    echo "Usage: `basename $0` process_name"    exit 1  fi    APPNAME=$1  PROC="`ps -ef | grep "$APPNAME" | grep -v "grep" | grep -v "awk" | grep -v $0 | awk '{print $1}'`"    if [ -z $PROC ]; then    echo "invalid process_name"    exit 1  fi    SMAPS="/proc/$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 1  done